Liverpool & Wirral
Expert Home Extensions Designed Around Your Life
Built to last generations. From concept to completion.
More space. More light. More value.
Family-run. 40+ years experience. Design-led.
A home extension is the smartest investment you can make — without the stress of moving. At Glassar Projects, we handle everything from architectural design and planning permission through to the final finishing touches. We’re not just builders — we’re designers who build.
About Us
Liverpool home extension specialists Glassar Projects are a Leading Construction company, providing professional home extensions across Liverpool and the Wirral. We believe every person in Liverpool should have the opportunity to live in a beautiful open-plan living space.
Our team will work closely with you to turn your designs and ideas into the home extension of your dreams. With over 40 years experience, and two locations in Liverpool & the Wirral, we give our customers access to the finest builders on Merseyside.
Get a quote in seconds with our new Quick Quote calculator! Just enter some details about what work you need done. Then sit back while we do all the work — it’s that simple. You will receive an instant quote on the same page, in a step by step process in less than 30 seconds.
Get Your Free Quote in 30 Seconds
Your Extension, Your Way
Every Home is Different. We Design Bespoke Extensions Tailored to You.
Single-Storey
Open-plan kitchen-diners, garden rooms, and living spaces that flood your home with natural light.
Two-Storey
Extra bedrooms, bathrooms, and living space on both floors — the ultimate home transformation.
Wraparound
Total ground-floor transformations that completely reimagine how your home works for your family.
Rear Extensions
Extend into your garden for a bigger, brighter home with seamless indoor-outdoor living.
Garage Conversions
Home offices, gyms, and playrooms — unlock the hidden potential of your unused garage space.
How We Work
Three Simple Steps to Your Dream Extension
We start with a conversation about how you want to live. Our design team creates detailed architectural plans, handles planning permission with Liverpool City Council, and produces 3D visualisations so you can see your extension before a single brick is laid.
Our skilled tradespeople handle every aspect — foundations, brickwork, steelwork, roofing, plumbing, and electrics. We project-manage the entire process with weekly updates and a dedicated site manager. No subcontractors, no surprises.
We handle all plastering, decorating, and final fittings — leaving you with a beautifully finished space ready to live in. From underfloor heating to bi-fold doors, skylights to kitchen islands, every detail is handled with precision.
Ready to Start Your Project?
Get a personalised quote in 30 seconds. No obligation, no pressure — just honest pricing from a family business.
Investment Guide
How Much Does a Home Extension Cost?
Every project is unique, but here’s a guide to help you budget. These are average costs for the Liverpool and Wirral area in 2024–2025, including all labour and materials.
| Extension Type | Typical Cost | Timeframe |
|---|---|---|
| Single-storey rear (3m–6m) | £35,000 – £65,000 | 8–12 weeks |
| Two-storey extension | £55,000 – £110,000 | 12–18 weeks |
| Wraparound extension | £60,000 – £120,000 | 14–20 weeks |
| Garage conversion | £15,000 – £30,000 | 4–6 weeks |
| Loft conversion | £40,000 – £70,000 | 6–10 weeks |
What Our Customers Say
“Glassar Projects were absolutely amazing from start to finish. They transformed our small kitchen into a beautiful open plan living space. The quality of work was outstanding and the team were professional throughout. Highly recommend!”
— Sarah Thompson — Kitchen Extension
“We couldn’t be happier with our new two-storey extension. When extra things came up they were upfront about costs and there were no issues. After it was finished a few bits needed tweaking and they came back to do so without hesitation.”
— Colin Dorricott — Home Renovation
“Chris and Carl were amazing from start to finish. They converted our garage into a level access bedroom and wet room. The end result was amazing and much more than we ever had imagined. We can not fault how clean they kept our property during the work and how well everything was managed. True professionals.”
— Paul Kristiansen — Garage Conversion
Frequently Asked Questions
Let’s Build Something Amazing Together
Use our Quick Quote Calculator to get an instant estimate, or get in touch to discuss your project with our team.