Trusted by Milton Keynes Homeowners
Builders in Milton Keynes
Extension specialists in Milton Keynes, also offering property renovations, kitchen and bathroom installations — designed, built and finished by one local team.
Project Management
From Start to Finish
Architectural
& Engineering Services
Public Liability
Insurance up to £2M
12 Months
Parts & Labour Warranty
Our contractors are accredited by
What We Do
Building Services in Milton Keynes
One local team for the whole job — plastering, electrics, plumbing, tiling and decorating are all part of the package
Home Extensions
Extension specialists in Milton Keynes — single storey, double storey, rear and kitchen extensions in traditional masonry
Property Renovations
Whole-house and multi-room refurbishments, structural openings, re-plastering, new floors and decorating
Kitchen Fitters
Local kitchen fitters for full kitchen installations and renovations, from strip-out and first fix to units, worktops and tiling
Bathroom Fitters
Bathroom fitters for bathrooms, en-suites, cloakrooms and wet rooms, fully plumbed, tiled and finished
Our Work
Latest Projects
See what we've been working on over the past few months
Testimonials
Hear From Our Customers
Crownhill Building Services is proud to publish unscripted feedback
We have completed single storey rear extension with flat roof, large Bi-Fold door, roof lantern and kitchen installation in Crownhill
View Project
Watch our client discuss their new single storey kitchen extension in Brooklands, Milton Keynes, and how it transformed their family home.
View ProjectWe Don't Just Build Extensions
As extension specialists in Milton Keynes, Crownhill Building Services delivers every project to the highest standards including personal customer requirements.
Creativity, innovation, ingenuity and the determination to achieve excellence in what we do. From a full house renovation to a new kitchen or bathroom, every trade is part of the package.
The Future of Home Extensions
Spectra Extensions
Traditional Finish. Built Smarter.
What if you could have a beautiful extension that's indistinguishable from a traditional build — but completed in weeks, not months?
50%
Faster to Build
50%
Lower Carbon
Cutting-edge foundation technology. Advanced composite materials. Precision-engineered components that simply weren't possible a decade ago. No excavation, no concrete trucks, no months of waiting. This is what happens when innovation meets craftsmanship.
Explore Spectra ExtensionsReady to Transform Your Home?
Get in touch today for a free, no-obligation quote. Let's discuss your project and bring your vision to life.
Our Difference
Why Crownhill Building Services?
Extension Specialists
Extension specialists in Milton Keynes, with renovations, kitchens and bathrooms too — over 20 years' experience
Skilled Tradesmen
Fully qualified and highly skilled professionals on every project
Creative Minds
Innovative ideas that bring your vision to life
Project Management
Inclusive management keeping you informed every step of the way
Perfection Driven
Determination to achieve the perfect result for your home
Customer Reviews
What Our Customers Say
Real reviews from our Google Business Profile
If you looking for a solid and professional company to extend your property or any of the building project, the CBS is a right choice. Eric, the project manager is always available and willing to help with professional a…
Read more on GoogleWe recently used Crownhill Building Services for a single-storey extension, including a new utility room and front room, and we couldn’t be happier with the outcome. Eric and his team were fantastic from start to finish…
Read more on GoogleGreat end result, really happy with the 2 storey extension. Took longer then planned due to weather etc but good communication helped a lot, genuinely collaborative and flexible, helped us get to where we wanted and deal…
Read more on GoogleWe had some trepidation about undertaking building works but we needn’t have worried. Eric and his team worked extremely hard; they appeared every day and when they couldn’t make it we were notified in advance (and his …
Read more on GoogleWe would highly recommend Crownhill building services if you are planning on having building works done. Our 4mtr long extension was done by Eric and his team and they made the whole project seamless. From the architect…
Read more on GoogleLatest News
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