Expert Building Services in London, South East London & Surrey

Established in 2004, Ascent Builders offers top-quality loft conversions & home extensions at a competitive cost and in a timely manner.

Skilled Team

First Class Results

Competitive Prices

5 Star Feedback

About Ascent Builders

Higher Standards, Better Builds

Family company established in 2004

We specialise in loft conversions but pride ourselves in offering a comprehensive construction service including house extensions, general building services and structural alterations. Our staff and partners are fully qualified and have been working together for many years, guaranteeing our customers the highest level of craftsmanship. Our professional and friendly approach has seen us build excellent relationships with our clients and has lead to us receiving a wealth of enquiries through word of mouth and recommendations. We are proud of our reputation – every job is important to us.
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Years Experience
Certified Builders

Costruction Work You Can Count On

We Build Beyond Expectations

Ascent Builders specialise in high-quality loft conversions, home extensions, and plastering & decorating services. 

That idle space above your ceiling is full of potential. We can transform your dusty attic into a home office, an extra en-suite bedroom, a home cinema, or anything else that would improve the enjoyment of your home. Our experienced team always delivers stunning, high-quality finishes to bring your vision to life.

house extension

That bit of garden you barely use? It’s hiding your dream space.
We can turn it into a bright new kitchen, a bigger living room, or a playroom. Whatever you need — more space, better flow, room to breathe — we’ll build it with care, precision, and the kind of finish that makes it feel like it was always meant to be there.

garden office

That patch of lawn could be so much more than a place to push a mower around. We build detached garden offices that give you space to focus, think, and work — without the kitchen table chaos.
Whether you want a sleek home studio, a quiet therapy room, or just somewhere to get things done, we’ll build it properly, from the ground up, with style and a structure that lasts.

Home renovations

Worn-out spaces, outdated finishes, or tired-looking rooms? We transform them. Our renovations and refurbishments deliver clean, modern, and long-lasting results. Whether it’s a single room update or a full property makeover, we leave every detail flawless — ready for living, working, or simply being admired.

Your Satisfaction is Our Top Priority

We don’t cut corners. From foundations to finishes, every stage is done properly — using quality materials, skilled contractors, and a sharp eye for detail. 

We Show Up

We show up and get the job done, there are no vanishing acts or endless delays. When we agree on a start date, we stick to it. Our team turns up on time, works hard, and keeps the site tidy — because we respect your home, your time, and your sanity.

Straight-talking quotes

We don't give vague estimates, and there are no creeping costs. We give you a clear price at the start, explain exactly what it includes, and stick to it. You’ll know what you’re paying for — and why.

Building a Legacy of Quality Work

Our gallery of completed projects shows our solid workmanship, sharp details, and jobs finished the right way.

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Projects Completed

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Satisfied Clients

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Years Experience

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Team Members

What Customers Say About Ascent Builders

Richard H, Epsom

Faultless work, friendly team, and finished on time. Will definitely use again.

Anne Hudson, Guildford

Mick and his team converted my garage into a home office. I am so happy with the new space. Well worth the money.

Desmund P, Farnham

Had my fixer-upper plastered by Ascent and a few small building jobs done too. Overall, a very positive experience.

Fill out the form, and we will promptly reply to discuss your project and give you a free, no-obligation quote.

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Ready to Transform Your Space?

Get in touch with A2 Building Maintenance for expert decorating, plastering, and rendering services that elevate your property.

Our Latest Blog Posts

How Much Value Does a Loft Conversion Really Add to Your Home?
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How Much Value Does a Loft Conversion Really Add…

Rendering is the silent architect of curb appeal – the invisible hand that shapes first…

Think Your Loft’s Just Dead Space? Think Again
28May

Think Your Loft’s Just Dead Space? Think Again

That dusty attic is doing nothing for you — but it could be the best…

The 5 Most Popular Types of Home Extension — And Which One Fits Your House Best
28May

The 5 Most Popular Types of Home Extension —…

If your home’s bursting at the seams, an extension could be the answer — but…