BASINGSTOKE'S TRUSTED HOME EXTENSION SPECIALISTS
Home Extensions
Blue Finch Building Services design and build premium rear extensions, side extensions, wrap-around extensions, double-storey extensions and kitchen extensions across Basingstoke, Hampshire and Surrey. From planning permission and architectural drawings to foundations, structural steels, full build and finish — every project is delivered on time, on budget, and built to last. Trusted local builders with decades of combined experience on residential home extension projects.
How We Help
Blue Finch Building Services are Basingstoke’s trusted home extension specialists, delivering high-quality rear extensions, side extensions and double-storey extensions across Hampshire and Surrey. From initial design through to final finish, we handle every stage of the build with precision, transparency and craftsmanship. No shortcuts, no surprises — just proper builders delivering proper work.
Design Your Perfect Extension
Description: Tailored extension designs that match your property, lifestyle and budget.
Free On-Site Quotation
Accurate, no-obligation extension quotes with full project breakdown.
Add Value to Your Home
Boost your property's market value with a professionally built extension.
Experience You Can Rely On
Blue Finch Building Services are proud members of the Federation of Master Builders (FMB) — the UK’s largest trade association for the construction industry. FMB membership means every project is backed by vetted workmanship, full insurance, and the highest industry standards. When you hire Blue Finch, you’re hiring builders who are independently inspected, fully accredited, and trusted across Basingstoke, Hampshire and Surrey.
- Fully vetted FMB-accredited master builders
- Independently inspected workmanship on every project
- Fully insured, guaranteed, and built to industry standards
FMB Accredited Builders
Certified members of the Federation of Master Builders UK.
Fully Insured & Guaranteed
Public liability and workmanship warranty on every build.
Vetted & Independently Inspected
Workmanship assessed and approved by the FMB.
Local Basingstoke Experts
Trusted master builders serving Hampshire and Surrey.
Comprehensive Home Extension Services
From single-storey rear extensions to full double-storey builds, Blue Finch Building Services deliver expert home extensions across Basingstoke, Hampshire and Surrey. Every project is handled in-house from design to finish — planning, foundations, steels, roofing, plastering and decorating. One trusted team, one point of contact, one exceptional result.
Rear Extensions
Expand your living space with a professionally built rear extension in Basingstoke. Perfect for open-plan kitchens, dining areas and family rooms that transform how you live. Full design, planning and build service.
Side & Wrap-Around Extensions
Maximise your property's footprint with side or wrap-around extensions across Hampshire and Surrey. Ideal for narrow plots, corner properties and homes needing extra width and light without losing garden space.
Double-Storey Extensions
Add a full floor of living space with a double-storey extension built to the highest standards. Extra bedrooms, bathrooms and family space — a serious investment that dramatically increases your home's market value.
Property Selling Services
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Real Estate Consultation
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Personalized Home Search
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Open House Hosting
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Build Your Dream
Quality Services
Home Extensions
From kitchen extensions to double storey additions u2014 we manage every stage of your build, from structural groundwork to the finishing details.
Full Property Renovations
Complete interior transformations across Hampshire and Surrey. Structural work, plastering, flooring, tiling, electrics and plumbing u2014 done properly by an FMB accredited team.
Garage Conversions
Turn an underused garage into a fully functional living space. Full conversion from foundations to finish, including insulation, electrics and plastering.
Heating Systems & Radiator Installation
New central heating installations, system upgrades and radiator replacements. Fully fitted, commissioned and tested to the highest standard.
Structural Alterations & Steelwork
Steel beam installation, load bearing wall removals, structural openings u2014 the heavy work that makes modern open plan living possible.
Roofing & Loft Conversions
Full loft conversions, roof alterations, velux installations and flat roof builds u2014 maximising every square foot of your property.n
847
Licensed & Insured Projects Completed
100%
Federation of Master Builders Accredited
302
Successfully Projects
40+
Years of experience
About Founders
Our Latest Works
Rear Extension
Double Extension
Single Story Extension
New Build
Hampshire & Surrey's Trusted Local Building Company
Blue Finch Building Services is a fully accredited, Federation of Master Builders approved construction company based in Hampshire, serving Surrey, and the surrounding areas. From single-storey extensions and rear extensions to full loft conversions, kitchen renovations, bathroom refits, and new builds u2014 we deliver every project to the highest standard, on time and on budget.
With years of experience across residential and commercial builds, our team of skilled tradesmen brings professionalism, craftsmanship, and reliability to every job. Whether you’re extending your home, converting your loft, or undertaking a full property renovation u2014 Blue Finch Building Services is the team Hampshire and Surrey homeowners trust.
Expert Tradesmen
Qualified builders, joiners, plasterers, and plumbers delivering quality workmanship on every project u2014 from small renovations to full extensions.
Federation of Master Builders
ApprovednFully vetted and accredited u2014 giving homeowners complete confidence in the quality, safety, and professionalism of every build.
Extensions, Loft Conversions & Renovations
Specialists in rear extensions, double-sided extensions, loft conversions, kitchen refits, bathroom renovations, and full property refurbishments across Hampshire and Surrey.
See The Blue Finch Difference u2014 Before & After
From tired, outdated properties to stunning modern homes u2014 this is what happens when you put the right builders on the job. Every transformation you see is a real Blue Finch project, delivered on time, on budget, and to Federation of Master Builders standard.