Lewis and the team did a fantastic job on our extension from start to finish. Communication was excellent throughout, they kept us updated at every stage, turned up when they said they would, and left the site clean and tidy each day. The finish is exactly what we wanted and the whole process was far less stressful than we expected.
House Extensions in North Yorkshire
Single and double storey extensions that look like they were always part of the house.
20+ yearsin the trade
Up to 10 yearsinsurance backed guarantee
FMB memberFederation of Master Builders
TrustMarkGovernment endorsed
Team of 12multi trade, in house
An extension that looks like it was always there
The best extensions are the ones people assume came with the house. That comes down to matching the stone or brick, getting the roof pitch right and detailing the openings the way the original builder would have.
We build extensions on houses of every age, from modern semis to old stone farmhouses. Many of the houses we work on have solid stone or brick walls, often built before 1919, and some are listed or in conservation areas. We know how to join new to old without trapping damp or cracking the existing walls.
Inside, the aim is usually one big room: a kitchen, dining and living space that opens onto the garden. That means steels, careful structural design and glazing sized to the view.
Types of extension we build
Pick a type to see examples of our work.
The most popular type of extension. A kitchen diner or family room across the back or side of the house, with a flat roof and lantern or a pitched roof in slate or pantile.
Extra bedrooms and an en suite upstairs, bigger living space below. Usually better value per square metre than a single storey, though it will normally need planning permission.
A full height glazed gable brings light and a view deep into the house. It suits stone and barn style homes in the countryside particularly well.
A stone or brick base with a glazed roof or lantern. Somewhere between a conservatory and an extension, and far more usable all year round.
Sketch your extension
Choose the size, roof, finish and doors. It is a rough sketch, but it gives us a clear picture before we visit.
Your projectA sketch to start the conversation. Every job is priced after a visit.
One big room at the back of the house
Steels, roof lanterns and wide glazing turn a separate kitchen and dining room into the space most families actually want to live in.
Inside our extensions
What an extension involves
Every job is different, but most follow the same path.
Drawings and planning
Many single storey rear extensions fall under permitted development. Others need planning. We will tell you which, and the architect we introduce handles the application.
Structure and building control
An engineer designs the steels and foundations. We notify building control and book inspections as we go.
The build
Footings, walls, roof and glazing first to get weathertight, then the opening into the house is made when the new room is ready.
Finishing
Plastering, floors, kitchen, electrics and decoration, then a walk round together before handover.
What extension clients say
Thinking about an extension?
Call us or WhatsApp a few photos. We will tell you honestly what is involved and arrange a visit.
Extension questions
Anything else, call us on 07816 237961.
Do I need planning permission for an extension?
Not always. Many single storey rear extensions can be built under permitted development, within limits on depth and height. Side extensions, most two storey extensions and larger extensions in conservation areas normally need planning, and any work to a listed building needs listed building consent. Our planning guide covers the detail.
How long does an extension take to build?
It depends on the size and the specification, and we will talk you through a realistic timescale before work starts.
Can we stay in the house while you build?
Usually, yes. We build the new structure first and only open up into the house when the extension is weathertight, which keeps the disruption inside to a minimum.
Can you match the stone or brick on my house?
In most cases, yes. We source reclaimed or new stone and brick to match, and lay it to the same coursing and pointing. On stone houses we use lime mortar where the original walls need it.
Do you give prices on your website?
No. Every extension depends on the house, the ground and the spec. We visit, and the job is then priced in full by independent estimators so the number you get is accurate.
One team and one point of contact, with an honest price
One team runs every job, from the first visit to the final clean. Call us, WhatsApp a few photos, or send the form below.
What our clients say
We were introduced to Barlow Construction through our architect. They proved themselves to be a professional, trustworthy and reliable building company. Nothing was too much trouble. Originally taken on to do a single storey extension, which they did to an extremely high standard, we then asked them to lay a full surround patio with ACO drainage and repair our chimney stack. They were very tidy, clearing and putting everything away at the end of each day. We would wholeheartedly recommend them.
Excellent service from start to finish. The team was professional, reliable and clearly took pride in their work. Communication was great throughout, everything was completed to a very high standard and they kept the area clean and tidy. The finished result exceeded my expectations. I would highly recommend this company to anyone looking for a trustworthy and professional construction team.
Following a tender process organised by our architect, we chose Barlow Construction of Thirsk for a single storey extension enlarging our kitchen diner, and a raft of other internal work. Lewis and his team were exemplary. We particularly liked their flexibility with variations and extra tasks as we went along. Cleared up each evening and respectful of the property and neighbours. The standard of build and the communication throughout were superb.
Lewis Barlow has been involved in two major projects at our house near Stillington. These included restoring a barn and converting it to residential use, renovating the original farmhouse, and building two substantial extensions. He has immense skill in all areas of construction, takes huge pride in his work, and is always a delight to deal with. He runs a team efficiently and explains what he is doing as he goes, always letting you know what the next day or week holds. Our house is a joy to live in.
Every room has been upgraded in our extended bungalow by Barlow Construction. It took five months of continuous work and we can only describe it as faultless, not a word we use lightly. From day one their prime concern was to make sure we got what we wanted, with quality, politeness and excellent communication. Scrubbing the new patio on the last day summed up their whole attitude.
We had a single storey extension and a new kitchen installed by Lewis and the team and couldn't be happier with the finished project. The work was of excellent quality and done with real professionalism and knowledge from start to finish. I cannot fault them.
Lewis and the guys built our double storey extension and fully completed the interior. From the en suite bathroom to the kitchen installation, Lewis project managed every area, which made it entirely stress free. The guys did an absolutely fantastic job and made our home look even better than we imagined.
Lewis and the team did a brilliant job on our extension. Without them we would not have achieved our dream home. From basic drawings, a huge job was completed in record time to a very high standard, and Lewis always accommodated the changes we wanted. Our architect commented on the workmanship and took photos for his own website.
The Guild ofMaster CraftsmenMember
Insured by QBE£5m public liabilityUp to 10 yearsinsurance backed guaranteeThe Guild ofMaster CraftsmenMember
Insured by QBE£5m public liabilityUp to 10 yearsinsurance backed guaranteeTalk to us about your extension
Send a few details and we will call you back to talk it through and arrange a visit. If you already have drawings, WhatsApp them over and we will look at them before we come out.
- Call us07816 237961
- YardUnit 3, Bridge Farm, Park Road, Topcliffe, Thirsk YO7 3PD
Tell us about your project
Every enquiry is read by our team and we will come back to you to arrange a visit. Quotes are free and come with no obligation.