Surrey · England
New Build Mastic in Farncombe
New-build sealant joints in Farncombe need attention? We cut out the old, prepare the joints and apply the right sealant, with a 12-month guarantee.
- Gaps behind new kitchen upstands
- Untidy sealant flagged on a snagging list
- Cracked caulk along new skirting
New build mastic for homes and businesses in Farncombe
Dust is the enemy of new-build sealant. We clean every joint thoroughly and prime where the surface and product need it, so the sealant actually sticks instead of bonding to the dust. Common call-outs are for joints pulling apart as timber shrinks and second-fix sealing on new plots, across kitchens, plot handovers and bathrooms & en suites.
In smaller places like Farncombe, new homes tend to come as small developments or single plots. Each still needs its sealant and floor joints finished properly from day one.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Place
- Farncombe (GU7)
- Wider area
- Surrey
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Looking after it afterwards
To keep the joints looking good and working properly:
- Put sealant faults on your snagging list early
- Open a window or run the fan after bathing
- Resist patching a failed seal with a tube from the DIY shop
- Don’t wait for the house to settle if water is getting through
Leave the sealant for the cure time we give you before showering or bathing. Silicone is usually left for about a day.
A failed seal in a new home lets water into joists, plasterboard and ceilings. Catching it early keeps the fix to the sealant and protects the rest of the house.
Should I try it myself first?
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
When something else is needed
We will not take on work that won’t last, so these are the limits:
- Broken tiles or a split tray
- Cracking that points to a structural problem
- Deciding who is responsible under a builder’s warranty
If you are not sure, just ring 0345 464 0079 or send us an email and we will give you a straight answer before you book.
Where we work in Farncombe
- Plot handovers
- Windows & doors
- Skirting & floors
- Show homes
- Kitchens
- Bathrooms & en suites
How it works
You do not need to clear the whole room or building before we come, only the area right around the joints. We protect the rest, and the work takes anything from a few hours to several days, depending on the number of plots in most cases. In a smaller place like Farncombe, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- First we work through your snagging list or plot schedule with you.
- The old bead comes out in full, with no layer left behind.
- We clean off dust from the build and prime the surfaces where the product needs it.
- We apply a sealant that suits each joint and tool it to a neat finish.
- We check every joint and tell you how long each needs to cure.
Getting ready for the visit
- On commercial sites, let us know about site rules
- Mention if the joints have been sealed before
- Clear items away from the joints we’re working on
Getting a quote
Getting a quote is simple: let us know what needs doing and where and its rough size. A few pictures by email make the job easier to understand, and we’ll take it from there.
Read more
Places near Farncombe
What else we do in Farncombe
What new build mastic looks like in Farncombe
Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you’ve bought a new home near Farncombe station, the sealant around baths, showers and frames is worth checking in the first year or two. Around Farncombe, as everywhere, new build mastic is only as good as the preparation behind it.
Farncombe is about 4 miles south-west of Guildford, in Surrey. Whether you’re in the middle of Farncombe or further out, new build mastic is available for homes and businesses alike, from flats and houses to offices and hotels. We cover 395 towns and villages across Surrey. You can also see our page for Crawley, roughly 19 miles from Farncombe.
Postcode districts we cover here for new build mastic: GU7. That includes homes and businesses on Station Road, Old Station Road and Walnut Tree Gardens and the roads around them. Nearby, we also carry out new build mastic in Godalming (1 mile south), Aaron's Hill (1 mile south-west), Busbridge (1 mile south), Upper Eashing (2 miles south-west) and Lower Eashing (2 miles west). Larger places within reach include Guildford (4 miles north-east), Woking (8 miles north), Camberley (11 miles north-west), Farnham (8 miles west), Dorking (12 miles east) and Frimley (10 miles north-west).
Near you in Farncombe
Typical jobs here are in homes near Broadwater School, Farncombe Wood and The Freeholders pub and the streets around them. There’s a railway station in Farncombe itself: Farncombe station. A little further out are Charterhouse School Museum (0.6 miles west) and Guildford Castle (2.9 miles north-east). Open spaces near Farncombe include Frith Hill and Farncombe Wood.
What happens if it’s left?
DIY kits don’t solve the main problems with new-build sealant: dust, no primer and old sealant left in the joint. Proper removal and preparation are what make it last. In an older home around Farncombe, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all make a difference.
Why us?
- Sanitary silicone with an anti-fungal additive in wet areas
- Over 20 years’ experience
- Colour picked to suit the job
- Colour agreed with you before we start
Surface by surface
Windows and doors
Internal joints between frames and plaster often crack as a new house dries. We cut out the cracked bead and reseal with a flexible sealant in a matching colour.
Bathrooms and en suites
En suite showers are a common source of leaks into the room below. A proper reseal keeps water in the tray.
FAQs for Farncombe
Will you come out to Farncombe?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
I let a flat near Farncombe station. Can you help?
Yes. We work for landlords and letting agents as well as homeowners. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear quote.
Can you do several jobs on one visit?
Yes. Several rooms, windows or areas can go on one quote.
What information do you need?
A short description and the location, plus photos if you have them. If we need more, we’ll ask.
Which products do you use?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Should I go to my builder first?
While the snagging or warranty period runs, the builder should be your first contact. If they’re slow or the fix does not last, we can help.
Can I do it myself?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Do the sealants smell?
Possibly a little. It fades as the sealant cures.
For landlords and businesses
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we will quote.
Landlords and letting agents in Farncombe can book us as well as householders. Sealant work between tenants keeps a property looking cared for.