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.
No obligation · Usually reply within 2 hours
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 in it 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.”
How Much Will Your Project Cost?
Answer a few quick questions to get a free ballpark estimate — no obligation.
Step 1 of 6 — Project Type
What are you looking to build?
Select your project type to get started.
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
View service
New Builds
Full new build construction from foundations up
View service
Bathrooms
Full bathroom design, supply & installation
View service
Structural Work
Wall knock throughs, RSJ steel beams & open plan
View service
Kitchens
Kitchen extensions & open-plan living spaces
View service
Stonework
Natural stone, sandstone & stone restoration
View service
Groundwork
Foundations, drainage & concrete slabs
View service
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
Full single-storey rear extension in Moreton, Wirral — demolition of an existing conservatory, new blockwork structure with pitched and flat roof sections, underfloor heating, bi-fold doors, skylights, and a new block paving patio. Completed April 2026.
Read more
ExtensionChester · 2026
Chester Knock-Through Extension
Two rooms knocked into one open-plan living and dining space in Chester, with a new rear extension featuring floor-to-ceiling glazing, RSJ steelwork, and herringbone flooring. Completed January 2026.
Read more
ExtensionWirral · 2025
Wirral Kitchen Extension
Open-plan kitchen and living extension in Wirral — bifold doors opening onto a new slate patio, dual roof skylights, herringbone flooring, and a full kitchen fit-out with island seating. Completed 2025.
Read more
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 throughout. A transformation that adds real, year-round living space. Completed November 2025.
Read more
ExtensionWillaston · 2025
Willaston Rear Extension
Single-storey rear extension in Willaston, Wirral — dark brickwork, large bifold glazing, paved patio, and full kitchen fit-out. Designed by Evolve Architects Wirral and completed in 2025.
Read more
ExtensionWest Kirby · 2024
West Kirby Rear Extension
A double-storey rear extension adding 45m² of open-plan living space to a semi-detached Victorian property — bifold doors, roof lantern, and underfloor heating throughout.
Read moreAdvice & Guides
From the CNR Blog

What Is Groundwork in Construction and Why Does It Matter?

What Structural Work Requires Building Regulations Approval in the UK?

Thinking of a Kitchen Extension? Here's What You Need to Know
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.
Get Your Free Pricing Guide
Instant access — no spam, no obligation
- Real extension costs in 2026
- Real timelines — not builder guesswork
- The hidden costs that catch homeowners off guard
No spam. CNR Construction will never share your details.
Google Reviews
What Wirral Homeowners Say
Mike Davison
“Ollie came to ours to fix an exterior wall that had some holes in it 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.”
Wozza
“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.”
DY357LX
“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.”
Peter Simpson
“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.”
Sandra Blackledge
“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. 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.”
Jo Williams
“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. Already asked Ollie if he can do our garden next year as we are so impressed!”
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.
Get a Free Site VisitAreas We Cover

Ready to Get Started?
Join hundreds of Wirral homeowners who've trusted CNR Construction with their biggest home investment. Get your free quote today — no pressure, no obligation.
Call or WhatsApp
07784 255380Email us
info@cnrconstructionltd.comBased in
Wirral, Merseyside
7 days a week · 8am–5pm
Usually responds within 2 hours