Extensions · Godstone, Surrey
House extension builders in Surrey
More room, built by one firm from the groundworks to the finished room. Surveyed before it is priced, not after.
- Established 2005
- Free survey
- Written, itemised quote
- £10m public liability
What we build
Rear, side-return, wraparound and two-storey
We take extensions from the drawings and building control through to the finished room: groundworks, structure, roof, openings, then the inside. Groundworks, brickwork, carpentry, roofing, plastering, plumbing and decorating all go on one contract and one quote.
On an older Surrey house the surprises are underground and in the existing structure, so the survey happens before the price, not after it. We build extensions for homes within about ten miles of our Godstone office.
- Rear extensions
- Side-return extensions
- Wraparound extensions
- Single-storey extensions
- Two-storey extensions
- Kitchen extensions
- Oak-framed porches and garden rooms
- Groundworks and foundations
- Roofs, roof lights and glazing
- The inside, finished
Our work
Extensions from our own jobs
A new oak-framed porch on a red brick dwarf wall 
A timber-framed single-storey extension, lit at night 
A green-oak porch with a clay-tiled roof
Every photograph here is of a job SG Refurbishments carried out.
Before you build
Planning permission, building regulations and party walls
Some extensions need planning permission and some do not. It depends on the size, the position, and whether the property is listed or in a conservation area. Almost every extension needs building regulations approval. On a semi or a terrace, work on or near the shared wall usually needs a party wall notice.
We look at all of that at survey and tell you what applies before anything is priced.
One firm
One firm across the whole build
An extension is most of the trades there are: groundworks first, then brickwork and structure, the roof, the openings and glazing, then plastering, plumbing, flooring and decorating. We manage every trade on the job, with one of our surveyors running it throughout, so you have one point of contact.
If you want us to take on the drawings and building control too, that is our design and build service. Extending for a bigger kitchen? See kitchens.
Oak-framed porches and timber-framed single-storey extensions are part of the same work, and carpentry is one of the trades on our own books.
How it works
From the first visit to handover
Free survey
We come out, look at the job properly and talk through what you need. No charge, no obligation.
Written, itemised price
A quote in writing with every part shown, before anything starts. Never after.
One team, every trade
One of our surveyors runs the job, and we book every trade in the right order.
Handover
Finished, cleared up and walked through with you, with the certificates that go with the work.
Why SG
Why people choose SG Refurbishments
Trading since 2005
Twenty years of building work, from our office at 27 High Street, Godstone.
Every trade, one firm
Twelve trades on one quote, from groundworks and roofing to plastering, tiling and decorating.
A surveyor on every job
One person runs it from the first visit to handover, so you always know who to call.
Insured
£10m public liability, £10m employers’ liability and £10m professional indemnity.
Safe sites
Risk assessments and method statements for every job, and SMSTS-trained site management.
References on request
Ask, and we will put you in touch with people we have worked for.
Questions
Questions about house extensions
What does a house extension cost in Surrey?
It depends on the size, whether it is single or two storey, the specification, and what the groundworks turn out to be. We do not quote blind: we survey it first, free of charge.
Do I need planning permission for an extension?
Sometimes, and sometimes not. It depends on the size, the position, and whether the property is listed or in a conservation area. We look at that at survey and tell you what applies.
Do I need a party wall agreement?
On a semi or a terrace, work on or near the shared wall usually needs a party wall notice. We tell you at survey whether it applies.
Can you draw up the plans as well?
Yes, through our design and build service: the drawings, building control and the build, from one firm. Or we build to your architect’s approved plans.
Who manages the trades?
We do. Groundworks, brickwork, carpentry, roofing, plastering, plumbing and decorating all go on one contract, with one of our surveyors running the job.
Which areas do you build extensions in?
Homes within about ten miles of our Godstone office, including Caterham, Oxted, Redhill, Reigate, Warlingham and Westerham.
Where we work
Extension builders near Godstone
Extensions built on homes across East Surrey and the edges of Kent and Sussex. We work on homes within about ten miles of our Godstone office: Biggin Hill, Caterham, Coulsdon, Crawley, East Grinstead, Edenbridge, Epsom, Godstone, Horley, Lingfield, Oxted, Purley, Redhill, Reigate, Sevenoaks, Tadworth, Warlingham and Westerham, and the villages around each.
More of what we do
Other services
- 01Design and buildOne firm from the drawings and building control to the finished build.
- 02KitchensDesigned, supplied and fitted, from a straight replacement to bespoke.
- 03RoofingRoof repairs, re-roofs, flat roofs, chimneys and leadwork.
- 04HeritageListed buildings, period homes, churches and conservation areas.
- 05General maintenanceRepairs, small jobs and building maintenance for homes, landlords and commercial premises.
- 06RenovationsWhole-house renovations, or one room at a time.
- 07BathroomsFamily bathrooms, en-suites, shower rooms and wet rooms.
- 08New buildBrand-new houses: one-off homes and new-build plots.
Free survey
Thinking about extending?
Tell us what you have in mind. We will come and look at it free of charge, then put an itemised price in writing. If it is not a job for us, we will say so rather than price it.
Mon–Fri, 8am–5pm. Emergency call-outs all year.