Builders in London Colney for Extensions & Renovations
House extensions, loft and garage conversions, kitchens and new builds in London Colney, handled by one experienced team from Hemel Hempstead.
House extensions, loft and garage conversions, kitchens and new builds in London Colney, handled by one experienced team from Hemel Hempstead.
Need a builder in London Colney? Call us on 01442 976 112
Last reviewed: by R Gabriel Carpentry & Builders
R Gabriel Carpentry & Builders are experienced builders in London Colney, covering single and double-storey extensions, loft and garage conversions, kitchens and full renovations. We're based about 7 miles away in Hemel Hempstead, have over 30 years' experience and keep every trade in-house. Call 01442 976 112 for a free, no-obligation quote.
At a glance
Our builders in London Colney take on most kinds of home building work, from a single room to a complete new house. The projects we're asked for most are:
See our full list of building services, or browse photos of recent projects in our project gallery. For other work, see our pages on construction in London Colney and carpentry in London Colney.
London Colney is a village south-east of St Albans by the River Colne and the M25, with Napsbury Park built on a former hospital site. Homes in London Colney include older houses near the river, post-war estates and newer homes at Napsbury Park.
Post-war houses here often have good-sized gardens and straightforward layouts, which suit single-storey rear extensions and open-plan kitchen-diners. Older cottages need a gentle approach: solid walls, low ceilings and lime mortars all affect how an extension is designed and built. On newer estates, permitted development rights are sometimes removed by a planning condition, so we check before designing an extension or garage conversion.

Not always. Many single-storey rear extensions, loft conversions and garage conversions in London Colney can go ahead under permitted development, but the limits are strict and some homes have lost those rights.
Planning applications in London Colney are decided by St Albans City and District Council. Much of the countryside around London Colney is Metropolitan Green Belt. Permitted development still applies to most houses, but applications for larger extensions are judged on whether they are disproportionate to the original building.
Whatever the planning position, extensions and loft and garage conversions need Building Regulations approval, which covers structure, fire safety, insulation and ventilation. Our guide to planning permission for house extensions explains the limits, and the Planning Portal guide to extensions has interactive examples.
Every project starts with a free visit and a written quote; see how an extension project with us works, step by step.
Choosing builders in London Colney is a big decision, so here is what you get with us:
“Once the team have finished you would never know they have been there with all rubbish removed and everything left clean and tidy.”
Yes. London Colney is about 7 miles from our base in Hemel Hempstead and sits well within the area we cover, along with nearby St Albans and Park Street.
Single-storey rear extensions for a bigger kitchen-diner are the most common, followed by garage conversions and two-storey side extensions where the plot allows. Post-war houses often have regular layouts and simple roofs, which helps keep the structural work straightforward.
Yes, with care. Older cottages often have solid walls, shallow foundations and lime mortar, so the design needs to tie old and new together properly. If the cottage is listed, listed building consent is needed for most changes.
Not always. Many single-storey rear extensions are allowed under permitted development, within limits such as 3 metres deep for an attached house (4 metres for a detached one) and 4 metres high. Much of the countryside around London Colney is Metropolitan Green Belt. Permitted development still applies to most houses, but applications for larger extensions are judged on whether they are disproportionate to the original building. Applications in London Colney are decided by St Albans City and District Council. A Lawful Development Certificate gives written confirmation if you're unsure.
Every extension is priced individually, so we give a free, itemised written quote after visiting your home. The main things that move the price are size, the number of storeys, foundations and ground conditions, structural steelwork, glazing, and the kitchen or bathroom fittings you choose.
Councils aim to decide householder planning applications within 8 weeks, and Building Regulations approval can run alongside. Build time depends on size and specification, so we set out a written programme with your quote.
Yes. Our team covers carpentry, bricklaying, roofing, plastering, painting and decorating, and kitchen fitting, and we manage the project from design to completion, so you deal with one firm rather than several contractors.
As well as London Colney, we cover nearby areas such as builders in St Albans, builders in Park Street, builders in Colney Heath and builders in Shenley. See every place on our areas we cover page.
Planning work in London Colney? Call 01442 976 112 or 07799 800 880, message us on WhatsApp or send us your project details for a free, no-obligation quote.
Let's talk about your project in London Colney
Get in touch today to arrange a free consultation and see how we can bring your project to life, from concept to completion.