WirralBuilders.
Done Properly.
House extensions, loft conversions, new builds and everything in between — professional builders in Wirral for 11+ years. Fixed price, no hidden costs.
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House Extension
Loft Conversion
Structural Work
New Build
Kitchen
House Extension
House ExtensionMike Davison
“Ollie came to ours to fix an exterior wall that had some holes it in after a structure had been removed. The entire process from enquiring to completion was slick and efficient. The work looks great, Ollie was quick to reply and easy to talk to throughout. It's difficult to find a reliable builder these days but it's safe to say I'd happily put my confidence in Ollie again for anything I need doing in the future. 👌”
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What We Do
End-to-End Building Services Across Wirral
One builder, one point of contact, zero stress. We manage every trade so you don't have to.

Loft Conversions
Dormer, Velux & hip-to-gable conversions
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New Builds
Full new build construction from foundations up
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Bathrooms
Full bathroom design, supply & installation
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Structural Work
Wall knock throughs, RSJ steel beams & open plan
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Kitchens
Kitchen extensions & open-plan living spaces
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Stonework
Natural stone, sandstone & stone restoration
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Groundwork
Foundations, drainage & concrete slabs
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Brickwork
New brickwork, repointing & render repairs
View serviceCase Studies
Projects We're Proud Of
Every job finished to the same standard — the one we'd want on our own home.
ExtensionMoreton · 2026
Moreton Rear Extension
Single-storey rear extension in Moreton, Wirral — new structure, underfloor heating, bi-fold doors, skylights and a block-paved patio. Completed April 2026.
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ExtensionChester · 2026
Chester Knock-Through Extension
Two rooms opened into one living-dining space in Chester, with a new rear extension — floor-to-ceiling glazing, RSJ steelwork, herringbone floors. 2026.
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ExtensionWirral · 2025
Wirral Kitchen Extension
Open-plan kitchen and living extension in Wirral — bifold doors to a slate patio, roof skylights, herringbone flooring and full kitchen fit-out. 2025.
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ExtensionWirral · 2025
Wirral Conservatory Removal & Extension
Old conservatory demolished and replaced with a proper brick rear extension in Wirral — French doors, roof skylights and matching brickwork. November 2025.
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ExtensionWillaston · 2025
Willaston Rear Extension
Single-storey rear extension in Willaston, Wirral — dark brickwork, large bifold glazing, paved patio and full kitchen fit-out. Completed 2025.
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CommercialBirkenhead · 2024
Birkenhead Convenience Store New Build
Ground-up commercial new build for a family-run convenience store on Price Street, Birkenhead — excavation and foundations through to handover. July 2024.
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From the CNR Blog

Garden Walls and Brickwork: A Wirral Homeowner's Guide

Single-Storey vs Double-Storey Extension: Which Is Right for Your Wirral Home?

What Happens After You Accept a Builder's Quote in Wirral? A Step-by-Step Guide
Stop Overpaying for Your House Extension
Our free guide reveals exactly what drives extension costs, the 7 mistakes homeowners make that add £10,000+ to their bill, and how to get an honest price from any builder.
Warning: Most builders don't want you to read this. It cuts through the industry jargon and gives you real power in any negotiation.
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- Real extension costs in 2026
- Real timelines — not builder guesswork
- The hidden costs that catch homeowners off guard
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Google Reviews
What Wirral Homeowners Say
“Ollie came to ours to fix an exterior wall that had some holes it in after a structure had been removed. The entire process from enquiring to completion was slick and efficient. The work looks great, Ollie was quick to reply and easy to talk to throughout. It's difficult to find a reliable builder these days but it's safe to say I'd happily put my confidence in Ollie again for anything I need doing in the future. 👌”
“Thanks to Ollie for coming out this evening to quote for our double storey extension. Up front and honest about the size of the job, concerns we might have and ultimately how much it could cost.”
“Excellent service. These guys came to my place to fix up some brickwork. They assessed the problem, told me how it'd be fixed and gave me a great quote. We then arranged a time and day for the job to be done. They arrived on time, answered my questions and did a great job. No mess left behind etc. Excellence all around. Highly recommended. Thanks again, guys!”
“Ollie and team at CNR did a great job repairing a failed lintel and associated brickwork on my outhouse in New Brighton. Responded quickly, acted professionally and were very pleasant. I wasn't sure anyone would take on such a small project, but they fitted it in the same week no trouble! I wouldn't hesitate to recommend them.”
“We recently used CNR Construction for a small job — just pointing a few walls — but from start to finish they treated it like a major project. The team was polite, friendly, and very professional, taking time to listen to what we wanted and making sure everything was done just right. Even though the scope was small, the quality was outstanding. The pointing is neat and consistent, with smooth joints and clean edges. No sloppy mortar, nothing rushed. They clearly take pride in craftsmanship, no matter how small the job. They also kept the site tidy, cleaning up after themselves every day. Dust and waste were removed; tools were stored away properly. It never felt like we were living on a building site. What impressed us the most: they acted like no job is too small. Every detail mattered. Communication was excellent — they arrived when promised, explained what they'd do, and finished within the expected timeframe. In short: if you want a team who delivers excellent workmanship, treats your home with respect, and doesn't cut corners because it's only a small job, Ollie is your man — one you can trust. Highly recommend.”
“Wow! What can I say about Ollie and his team? Fantastic from beginning to end. The work that has been done is better than I could have imagined! We now have the most beautiful open space and the work is beyond perfect. So professional, always checking we were happy, always communicating, and everything was so organised and when they left everyday the place was spotless! Already asked Ollie if he can do our garden next year as we are so impressed! We couldn't be more grateful especially as I've had this vision for a long time and it was like a dream come true! Ollie and team a million thanks and see you next year! X”
Costs vary by project type. Rear extensions in Wirral typically range from £50,000–£75,000, side extensions from £55,000–£80,000, and wrap-around extensions from £80,000+. Loft conversions start from around £30,000 depending on type. We give a fixed written price after a free site visit — no vague estimates.
Find Us
Based in Wirral.
Working Across the Peninsula.
We cover all of Wirral — Bebington, Wallasey, West Kirby, Heswall, Birkenhead and beyond. Fully insured and always happy to visit your property for a free no-obligation quote.
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07784 255380Email us
info@cnrconstructionltd.comBased in
Wirral, Merseyside
7 days a week · 8am–5pm
Usually responds within 2 hours