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DESIGNER HOUSE EXTENSIONS – Improve Don’t Move!

Transform your home with a superb house extension built by our dedicated team of experts.

House Extensions

House Extensions in Warrington, St Helens, Wigan & Surrounding Areas

At Complete Property Solutions, we understand that building a house extension is a major decision—and one that can truly transform your home and lifestyle. Whether you’re in Warrington, St Helens, Wigan, or any surrounding area, we’re here to guide you through every stage of the process.

From the initial idea to the final build, our expert team handles everything with care and professionalism. We take the stress out of the process by offering full support with planning permission, building regulations, and all necessary architectural drawings.

Whether your project requires formal planning approval or qualifies under permitted development rights, we’ll advise you clearly and honestly. We also manage all building control submissions and can organise structural calculations, ensuring everything is compliant, safe, and built to last.

A house extension is often the perfect solution for growing families or homeowners who want more space without the hassle of moving. From open-plan kitchen-diners to additional bedrooms, offices or utility rooms, we’ll help design and build a space that suits your lifestyle and adds real value to your property.

With years of experience and a five-star reputation across the North West, we’re proud to be a trusted name in home extensions. Let’s bring your vision to life—the right way, from the start.

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Bedroom Extensions

Need an Extra Bedroom? We’ve Got You Covered.

Thinking about adding a bedroom? You’re not alone. For homeowners across Warrington, St Helens, Wigan and the M6 corridor, a bedroom extension is one of the smartest ways to create more space without the cost and hassle of moving.

Whether it’s a guest room, kids’ room, or the master suite you’ve always wanted, we make it happen—properly. Our in-house designers and architectural team work hand-in-hand with our experienced installers to deliver exactly what you need, with no fluff and no confusion.

We take care of all the drawings, planning permission (if needed), and building control so you don’t have to deal with the red tape. Just tell us what you’re after, and we’ll guide you through the rest.

More space. Less stress. Built right.

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Transform your home with aluminium bi-folding doors

Bi-folding patio doors are the best way to flood your indoor space with natural light and enhance your sense of general well-being.

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Extending your home lets you tailor your living space to your needs, without the stress of relocating. Adding an extension can add significant value to your home, making it a worthwhile investment. Expanding your property with a single or double storey extension can make such a difference to your quality of life – whether you need an extra bedroom for a growing family, a home working space, a more spacious kitchen, or simply a haven to relax and unwind, our team of house extension experts based near St Helens will work closely with you to understand your vision and make it a reality. Our design and build service is completely bespoke. Expect only the best quality results, made by seasoned craftsmen who care about every detail of the job, right down to the finishing touches.

Whether you have a clear picture of how you want your home extension to look, or would like some personalised advice, our team are happy to talk through your idea with you. Reach out to us today and start a conversation about your dream home.

In the meantime, be inspired by our gallery of recent home extension projects we completed for clients across Warrington and as far afield as Liverpool.

Our Customers Comments

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Top Rated Service 2026
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Peter Astles profile picture
Peter Astles
0 days ago
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+0
I can recommend Complete Property Solutions (CPS) as a reliable, reputable and friendly builder, based on my experience below. I needed an old conservatory replaced with a permanent extension, an expansion of the utility room, opening part of kitchen. I chose CPS, as they were registered master builders, they answered the phone and turned up when they said they would, price was competitive. Prior to the work contract was laid out with payment stages, and details / standards of work at each stage The work was completed in accordance with contracted timetable, and flexible for inevitable client adjustments to plan design. The lads were all respectable of my property and polite. Gareth and Dave and the lads were all faultless. Final snagging was done promptly and to my satisfaction. I received all building regulation certificates within a few weeks of completion. An A plus from me.
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Holly Liu profile picture
Holly Liu
88 days ago
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+1
I just wanted to take a moment to share how truly impressed we are with Complete Property Solutions and the work they have done for us. Back in September, we embarked on a major project of a double side and single back extension—and not only was the work completed beautifully, but it managed to finish everything a month ahead of schedule! When we first reached out to Gareth, we were just in the initial planning stages, hoping for a rough estimate to help us get started. Gareth was incredibly helpful and kind, giving us a realistic ballpark figure that set the foundation for our plans. A year later, when we were finally ready to move forward, he provided us with a full quote that was extremely reasonable. During their visit to our house, Gareth and Dave took the time to walk us through details we wouldn’t have even known to consider, which made us feel completely at ease and confident that our project was in the best hands. Throughout every stage of the build, Gareth kept us in the loop, providing updates and communicating regularly. Even when we had constant questions or special requests, they were always available with thoughtful advice and unwavering support. What truly stood out, though, was Gareth's exceptional support during a difficult period when we encountered issues with remortgaging our house to fund the build. Despite the uncertainty, Gareth went above and beyond to help us navigate the challenges, offering guidance and making every effort to keep the project moving forward so we didn't have to halt construction. That level of dedication and care made a huge difference for us. There was another pivotal moment during the build when it became necessary for us to move out of our home to allow internal works to proceed. Dave and their team excelled yet again, keeping us well informed throughout and working tirelessly to meet our tight deadline for returning home. They started early, worked weekends, and showed genuine commitment to getting us back inside on time. Their thoughtfulness extended beyond our own needs; they even offered to help our neighbours with small, odd jobs to ease any inconvenience caused by the construction. This level of community spirit and care is truly rare. Every builder who came to our home was fantastic—friendly, professional, and a true credit to your business. It’s rare to find such a combination of skill and genuine kindness, and it made the whole experience enjoyable. Thank you once more for everything. We are absolutely thrilled with our new space and deeply grateful for your outstanding service, support, and dedication throughout the project. Words cannot express how thankful we are, and you will never truly know the extent of the difference you have made for us. We are forever grateful for the beautiful forever home you have made possible, and we will always cherish what you’ve helped us create.
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Ian Fogg profile picture
Ian Fogg
119 days ago
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+2
Amazing builders, great team, top notch. We will definitely be using again. I would highly recommend them.
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Kieran Sampson profile picture
Kieran Sampson
212 days ago
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+2
This time last year, we had a cold conservatory that added little value to our home. It could only be used for part of the year and, due to a box gutter, suffered from damp issues. It also left our kitchen colder and darker than it should have been. Now, we have a fantastic additional living space that we can enjoy all year round. It extends the back of the house, integrates beautifully with the rest of the downstairs, and has genuinely transformed how we use our home. From the very start, we were impressed with Gaz and the team at Complete Property Solutions (CPS). They handled every issue that arose, ensured all building regulations were met, and managed the entire process from start to finish. Gaz visited the site to assess the project and suggest ideas, many of which led to an even better final result. The on-site teams were consistently polite, hardworking, and respectful, always tidying up after themselves. A special thanks goes to Leo, Phil, Tyler and Kian, who built the HUP! system and completed the finishing touches, including the flooring — although everyone involved was excellent. We’ve already had neighbours asking who did the work — so hopefully we’ll see you again soon. Finally, a big thank you to Linzi, Dave and Gaz, who were always available on WhatsApp to answer our many (often random!) questions.
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Stephen Dickson profile picture
Stephen Dickson
369 days ago
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+0
We are delighted with what CPS have done for us! Gareth, Dave and the all the lads have been helpful, polite and hard working throughout. What we wanted was a little unusual but they supported us to make it a reality. Communication was good throughout the process and any issues were taken care of without fuss. The workmanship is excellent and the results spectacular. We love it.
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J Harmon (jjsam) profile picture
J Harmon (jjsam)
501 days ago
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+0
Brilliant company and very professional, put in new composite door and triple glazed window on door porch, more than happy with the result, using them again for another job
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David Preece profile picture
David Preece
514 days ago
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+2
Thanks to Mike and his hard working team,we now have the job completed and it's exactly how we wanted it, really pleased,Top class work and friendly hardworking lads , Highly recommended.
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Danielle Whalon profile picture
Danielle Whalon
522 days ago
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+1
Wish we could rate these higher than 5 stars as they have been unbelievable! The best company we have ever had do work for us. Everything that could possibly go wrong for us leading up to this build did. Thank God for these guys, they've sorted everything from start to finish. The extention looks incredible and every single one of the workers we came in contact with was polite and extremely knowledgeable regarding the work they was doing. We are so happy we opted for the hup build in the end as advised by Gareth due to us having very limited space - it's worked so well and utilised the space we did have to the maximum. The most reliable, polite and trustworthy builders around! Won't ever go to anyone else now - thank you Gareth and team!
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MP profile picture
MP
525 days ago
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+6
Excellent and professional service. After receiving a few quotations for an extension, redesign of the ground floor, hallway, utility room and garage conversion I went with Complete property solutions. From the start Gaz was punctual, approachable and knowledgeable and remained so throughout the project. The price he offered me is the price he stuck to throughout. Dave, Phil and the whole building team were professional and worked at high standards. They answered any questions we had and solved any problems we had throughout the build. We are happy with the work they have carried out. I would use this company again for future building works.
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Michael Hughes profile picture
Michael Hughes
584 days ago
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+8
What a fantastic experience! Right from the start we knew these guys were for us, Gaz was great at putting us at ease and helping us navigate through the project, when we literally had no idea what we were doing half the time. We had a 3x8 metre single storey extension, including a toilet, shower and they fitted a new kitchen too. Everything happened when the guys said it would, no delays, workmen on site promptly most days and everyone was just so friendly! The project started on time and progressed well. We were kept informed throughout. Everyone was tidy and helpful, as well as mindful of our two young children. We now have a fantastic extension and we can’t thank these guys enough - the whole team are all brilliant tradespeople. Can’t recommend them enough. Thank you Gaz, Dave and team!

Kitchen extensions – the Recipe For Success

What are the key ingredients for a fabulous new kitchen?

Designing and building your dream kitchen is a popular choice for our home renovators in the Manchester, Merseyside and Chesire areas.

As the main family hub of the house, a kitchen space is important.

Extending your home kitchen area requires flow and movement allowing for many activities such as cooking, entertaining and relaxing. Often kitchens double up as work from home spaces. Or there’s a need to bring the outside in.

As we are a vetted building company, a member of the Guild of Craftsmen, we have been chosen by leading brands to offer amazing materials to bring your dream kitchen to life.

We spend time with you evaluating and reaching solutions to fit your needs.

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Single Storey Extensions

Single-Storey Extensions: More Space. More Possibilities.

If you’re looking to add real space and value to your home, a single-storey extension is one of the smartest investments you can make.

It’s a clean, simple way to extend your ground floor and give yourself the breathing room you need—whether that’s for a new kitchen-diner, utility room, home office, or a place to finally relax without bumping elbows.

We don’t just build boxes on the back of houses. We design spaces that actually work—with natural light, proper flow, and full integration into your existing home. Think open-plan living, sliding doors, or even a space that brings the outdoors in.

As a Guild of Master Craftsmen member, we’re vetted and trusted to deliver quality. Our team handles everything from drawings and planning permission (if needed) to building regs, so there are no delays, surprises, or corners cut.

We’ll sit down with you, figure out what you need, and create a solid plan that fits your life and your budget—start to finish.

More room. More comfort. Built properly.

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Single-Storey Extensions in Warrington, St Helens, Wigan & Surrounding Areas More Space. More Possibilities. Zero Nonsense. If you’re looking to add real space and value to your home in Warrington, St Helens, Wigan, or anywhere across Manchester, Merseyside, or Cheshire, a single-storey extension is one of the smartest investments you can make. It’s a clean, simple way to extend your ground floor and give yourself the breathing room you need—whether that’s for a new kitchen-diner, utility room, home office, or a place to finally relax without bumping elbows. We don’t just build boxes on the back of houses. We design spaces that actually work—with natural light, proper flow, and full integration into your existing home. Think open-plan living, sliding doors, or even a space that brings the outdoors in. As a Guild of Master Craftsmen member, we’re vetted and trusted to deliver quality. Our team handles everything from drawings and planning permission (if needed) to building regs, so there are no delays, surprises, or corners cut. No gimmicks, no sales spin. We’ll sit down with you, figure out what you need, and create a solid plan that fits your life and your budget—start to finish. More room. More comfort. Built properly.
two storey Extension Preston

Double Storey Extension

Two-Storey Extensions in Warrington, St Helens, Wigan & Surrounding Areas.
Twice the Space. One Straightforward Build.

If your family’s growing or your lifestyle’s changing, a double-storey extension gives your home the space to grow with you—without the cost or chaos of moving. We’ve helped homeowners across Warrington, St Helens, Wigan, Manchester, Merseyside and Cheshire turn their current homes into their forever homes.

You get more living space downstairs—ideal for open-plan kitchens, bigger lounges, or utility rooms. And upstairs? Extra bedrooms, bathrooms, or even a dedicated home office. It’s flexible, practical, and adds serious value.

We don’t do guesswork. We work closely with you to make sure your new space looks and feels like it’s always been part of the house.

From start to finish, we handle the planning permission, drawings, building regs, and full build. You don’t have to chase a dozen different trades—we’re your one point of contact from concept to completion.

Double the space. Done the right way.

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Wraparound House Extension

Wraparound Extensions
Maximise Your Space Without Compromising Style

A wraparound extension gives you the best of both worlds—extending your home to the side and rear in one go. It’s the ideal way to open up your downstairs layout while adding serious square footage where it counts.

You get more room for a proper open-plan kitchen, dining, living, or utility area—and still have space for a home office or snug. Upstairs, it can create extra bedrooms or bathrooms without making the house feel unbalanced.

This type of extension makes a big impact, but only if it’s done right. Our team designs everything to flow with your existing home—so it doesn’t look like an afterthought. Just clean lines, smart use of space, and a build that feels like it was always meant to be there.

From drawings to final handover, we manage the full process under one roof. No chasing trades. No crossed wires. Just a team that turns up, gets on with it, and delivers exactly what was promised.

Clever design. Quality build. Zero hassle.

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Wrap around extension in St Helens

Traditional Orangeries

Traditionally Built Orangeries
Classic Look. Solid Build. Modern Comfort.

A traditionally built orangery gives you that grand, high-end feel—without looking like a bolt-on. With brick parapet walls to the front and sides, this isn’t a conservatory dressed up to impress. It’s a proper extension of your home, built to last and designed to blend in seamlessly.

You get the natural light of a glazed roof, combined with the thermal efficiency and privacy of solid walls. It’s perfect for a light-filled living room, kitchen extension, or relaxing garden room—whatever suits your space and lifestyle.

Designed from scratch to fit your home, with clean lines, proper proportions, and a finish that respects the character of your property. It looks like it belongs—because it’s built that way.

We manage everything from initial concept to the final coat of paint—design, materials, structure, and full build. No sales patter,  just a team that turns up, gets stuck in, and builds it properly.

Timeless style. Solid structure.

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Areas We Cover for Home Extensions

At Complete Property Solutions, we proudly design and build high-quality home extensions across a wide area in the North West. If you’re looking for trusted, experienced builders for house extensions, kitchen extensions, wraparound extensions, or double-storey builds, we’ve got you covered.

We carry out work in:

Warrington, St Helens, Wigan, Lowton, Lymm, Altrincham, Hale, Boothstown, Worsley, Newton-le-Willows, Ashton-in-Makerfield, Ormskirk, Leigh, Prescot, Haydock, Croft, Culcheth, Wilmslow, and Alderley Edge, as well as all surrounding towns and villages.

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Simply fill in your details for your free, no-obligation quote. Quality at an affordable price.

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Speak with one of our friendly advisors on 01925 223 297

Our team will be more than happy to help with any questions you may have