Aberdeen & Aberdeenshire · FMB Members · 20+ Years

Home Extensions
in Aberdeen.

Bespoke single and double-storey extensions, kitchen extensions and wrap-arounds across Aberdeen and Aberdeenshire. Built by a family-run firm with over 20 years' experience, and finished to match the home you already have.

FMB Members TrustMark Registered 5★ Rated From £2,500 / m²
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Federation of Master Builders member and TrustMark registered home extension builder in Aberdeen
20+
Years in Aberdeenshire
FMB
Master Builder Member
5
Rated by Clients
100%
Family-Run & Local
Your Local Extension Builder

More space, without
leaving the home you love.

A well-planned home extension aberdeen families can grow into is one of the soundest investments you can make in a property. It adds the room a growing household needs, it opens up the way you live day to day, and done properly it adds real value to your home. For over 20 years, Granite Builders has designed and built extensions across Aberdeen and Aberdeenshire, from a single-storey kitchen extension in Cults to a full double-storey side return in Inverurie.

We are a family-run firm, not a faceless contractor. As Federation of Master Builders members and a TrustMark registered business, we have been independently vetted and inspected, so the standard you are promised is the standard you get. One team looks after your extension from the first site survey through to the final handover, and we take particular care to match new work to the granite and stone homes the North East is known for.

Whether you are adding a rear extension to make space for an open-plan kitchen diner, a side-return to widen a narrow Victorian villa, or a double-storey extension that adds a bedroom above a living room below, we handle the structural work, the building warrant, the build and the finishing under one roof. The result is a space that feels like it was always part of the house.

Why Granite Builders

Why Aberdeen homeowners
trust us with the build.

01

Matched to Your Home

We take real care to blend new work into existing granite and stone houses, matching stone, render, roof lines and window styles so the extension looks like it belongs.

02

Accredited, Not Just Insured

Federation of Master Builders membership and TrustMark registration mean we have been independently vetted against a Government-endorsed standard. These are not labels we gave ourselves.

03

Warrant Handled For You

We prepare and manage the building warrant application with Aberdeen City or Aberdeenshire Council, and work alongside your architect where you already have one.

04

One Point of Contact

From your first survey to the final snag, one project manager looks after everything and keeps you informed. No chasing, and no being passed around.

Our Work

Extensions we have built
across the North East.

Single-storey rear extension completed by Granite Builders in Aberdeen
Single-Storey
Rear Extension, Aberdeen
Home extension under construction in Peterhead with blockwork and structural work in progress
Build Stage
Extension Under Way
Side extension completed by Granite Builders in Aberdeen
Single-Storey
Side Extension
Steel beam installed at a ceiling junction during a home extension in Aberdeen
Extension
Refurbishment & Extension
Extended family home in Peterhead with a finished garden and patio to the rear
Renovation
Extended Family Home
Finished open-plan kitchen diner in an Aberdeenshire home extension
Kitchen Extension
Open-Plan Kitchen Diner
Honest Pricing

How much does a home
extension cost in Aberdeen?

Most builders will not give you a number until they are sitting in your living room. We will. The figures below are honest starting points for extensions across the Aberdeen area.

Per Square Metre
£2,500/m²
Indicative guide price
A useful way to size up a project before detailed drawings are in place.
Single-Storey
from £45k
Typical rear extension
A typical single-storey rear extension starts from around £45,000.
Double-Storey
from £75k
Two floors of new space
Two storeys often cost less per square metre than two separate builds.
Kitchen Extension
Tailored quote
Build plus fit-out
Priced around your layout, structural openings and finish.

What is included. Our quotes cover groundworks, structural work, insulation, windows and doors, internal finishing, building warrant liaison and site clearance. We tell you upfront what sits outside the contract, such as kitchen units, appliances and specialist finishes, so the final invoice holds no surprises. Guide prices are indicative only, subject to a site survey, and exclude VAT. Your final cost depends on size, specification and site conditions. We provide a detailed written quotation free of charge after a survey.

How Long Will It Take

The question every homeowner asks first.

It is also the one most builders avoid answering. Here are honest, typical timescales for an extension once work begins on site. We confirm a programme for your specific project at quote stage, and we hold to it.

Single-Storey
8 to 12 wks
On site
From breaking ground to a weathertight, finished room.
Double-Storey
12 to 16 wks
On site
Two floors of new space, fully finished inside and out.
Kitchen Extension
10 to 14 wks
Build plus fit-out
Including structural openings, plastering and the kitchen fit.
Warrant Stage
Allow weeks
Before work begins
Time for drawings and the building warrant to be approved.

As a guide, most home extensions take around 8 to 16 weeks on site once the building warrant is approved. In Scotland, structural and habitable work needs a building warrant from Aberdeen City or Aberdeenshire Council, so allow additional time for the application to be processed before we break ground. We manage the warrant application on your behalf and keep you updated at every step. Timescales are indicative only, subject to a site survey, and exclude VAT.

Peace of Mind

Your money and your home,
protected at every stage.

Insurance Backed Guarantee

Protected for years

Through our TrustMark registration, your extension can be covered by an Insurance Backed Guarantee, so your investment is protected even in the unlikely event we could not return to put something right. Ask us for full details.

Written Workmanship Guarantee

We stand behind it

Our work is covered by a written workmanship guarantee. If a covered defect appears after completion, we come back and fix it. No arguments, and no fuss.

Fully Insured, In Writing

Contracts on every job

We carry public liability insurance and work to a written contract on every extension, large or small, so everyone knows exactly what was agreed.

Stage Payments

Pay as work is done

You pay to a written schedule tied to agreed milestones, only for work that is completed and inspected. For larger extensions, we can introduce a regulated finance provider so you can spread the cost.

How We Work

From your first call to the final handover.

Step 01

Free Survey & Quote

We visit your home, listen to what you want from the new space, and produce a detailed written quote. No ballpark figures scribbled on a form, and no obligation to go ahead.

Step 02

Design & Building Warrant

We prepare or coordinate the drawings, work alongside your own architect where you have one, and submit and manage the building warrant application with the council.

Step 03

The Build

One team, managed by your project manager, works to an agreed programme. The site is kept tidy and you always know what is happening next.

Step 04

Handover & Aftercare

We walk you through the finished extension, deal with any snags, and back the job with a written guarantee. We do not disappear when the invoice is paid.

Client Feedback

Trusted by homeowners across Aberdeenshire.

★★★★★

"They done an alteration by making a new wall opening and putting in a steel beam, then refurbished the whole house including our kitchen and bathroom. Well recommended."

Gabi Jacak · Google review
★★★★★

"Granite Builders did a great job removing a wall and installing a steel joist for us. They kept the place pretty tidy across all days they were here. Thank you."

Simon Martin · Google review
★★★★★

"Great people to deal with, highly recommend to anyone. Fantastic workmanship along with professional support. Answered everything I wanted to know along with having various choices when making decisions."

Andrew Bruce · Google review
5★ rated on Houzz, Yelp, Bark & Yell. Verified reviews from our Google Business Profile.
Finished rear extension with bifold doors on a home Granite Builders extended in Peterhead
About Us

A family extension builder Aberdeen has trusted for over 20 years.

Granite Builders has been part of Aberdeen and Aberdeenshire for over two decades. We are a family-run business, which means our reputation is personal. It is built one extension at a time, and we intend to keep it that way.

We know this region. We know the granite, the ground conditions, the weather and the way Aberdeen City and Aberdeenshire Council handle building warrants. That local knowledge is what keeps extension projects on schedule and budgets where they should be. From a single-storey kitchen extension in Bieldside to a full double-storey side return in Westhill, we bring the same care to every job, and we are proud Federation of Master Builders members and TrustMark registered because those standards matter to the people who trust us with their homes. We also handle loft conversions, kitchens and general building across the North East.

20+
Years Building
FMB
Master Builder
1
Point of Contact
Architect drawings for a home extension across Aberdeen and Aberdeenshire
Where We Work

Extension builders across
Aberdeen and Aberdeenshire.

We take on extension projects right across the city and the shire. From the West End of Aberdeen to Stonehaven, Inverurie, Banchory and beyond, if your home is in the North East, we can help. See all the areas we cover on our service areas page, or just ask.

AberdeenPeterheadEllonInverurie StonehavenBanchoryWesthillPortlethen Bridge of DonCultsBieldsideAberdeenshire
Good to Know

Home extension questions, answered.

In most cases, yes. In Scotland, structural and habitable work such as a home extension needs a building warrant from Aberdeen City or Aberdeenshire Council, which is separate from planning permission. Some smaller single-storey extensions may fall within permitted development for planning, but a building warrant is still usually required. We tell you exactly what applies to your project at quote stage, and we prepare and manage the application on your behalf.

As a guide, home extensions in the Aberdeen area start from around £2,500 per square metre, so a typical single-storey rear extension begins in the region of £45,000. The final figure depends on the size, the specification you choose and the condition of the site. These prices are indicative only, subject to a site survey, and exclude VAT. We give you a detailed written quote free of charge after a survey, so you know the real number before you commit.

Once we are on site, most home extensions take around 8 to 16 weeks. A single-storey extension is typically at the shorter end and a double-storey at the longer end. These timescales assume your building warrant is already approved, so allow extra time for the application to be processed before work begins. We confirm a clear programme for your project before we break ground and hold to it.

It depends on the space you need and the room you have. A single-storey extension is ideal for opening up a kitchen, dining room or family space at ground level. A double-storey extension adds two floors in one build, often a living space below and a bedroom or bathroom above, and frequently works out at a lower cost per square metre because you share one set of foundations and one roof. We talk both options through with you at the survey and advise on what makes sense for your home and budget.

Yes, gladly. Many of our clients come to us with an architect already appointed or drawings already drawn, and we are happy to build to them. We work alongside your architect through the design and building warrant stages, and we can also flag anything that might affect the build cost or programme early on. If you do not have drawings, we can prepare or coordinate them for you.

Yes, and it is something we take real care over. The North East is known for its granite and stone houses, and a good extension should look like it was always part of the building. We match stone, render, roof lines, eaves and window styles so the new work sits comfortably against the old. Where reclaimed or matching stone is needed, we source it, and we finish the join so it reads as one continuous home rather than an obvious addition.

Free, No-Obligation Quote

Ready to extend your home?

Contact Granite Builders today for a free, no-obligation quote on your home extension. Call 07946 046935, email info@granitebuilders.co.uk, or send a message, and we will get back to you within one business day. Your survey is free, your quote is detailed, and there is no pressure to go ahead.

No obligation · Fully insured · Family-run · We reply within one business day
Reviewed by our clients on