Surrey · England
Window Mastic in Farncombe
Mastic around window and door frames, sills and patio doors for householders, landlords and businesses in Farncombe. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Sealant in the wrong colour for the frame
- Cracked sealant at the sill ends
- Rain getting in at the frame or under the sill
Windows and doors in Farncombe
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Loseley Park (about 1.2 miles north) nearby, there’s older building stock in the area around Farncombe as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
In the older streets around St John the Evangelist Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Rented homes near Farncombe station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints.
Farncombe is about 4 miles south-west of Guildford, in Surrey. For window mastic in and around Farncombe, it’s easy to get a quote: please phone 0345 464 0079 or send us an email. We cover Surrey from our Crawley base, Farncombe included. We cover 395 towns and villages across Surrey, from the larger towns to small villages. We also work in Crawley, around 19 miles away.
Work in GU7 works the same way as everywhere else we cover. If you need window mastic at a property on Station Road, Old Station Road and Walnut Tree Gardens or a nearby road, we can help. If you’re just outside Farncombe, we cover 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).
What’s near Farncombe
In Farncombe, that means homes and buildings near Broadwater School, Farncombe Wood and The Freeholders pub. There’s a railway station in Farncombe itself: Farncombe station. Nearby you will also find Charterhouse School Museum (0.6 miles west) and Guildford Castle (2.9 miles north-east). Green spaces nearby include Frith Hill and Farncombe Wood.
About our window mastic in Farncombe
Around Farncombe we seal all kinds of frames: from uPVC casements to timber and aluminium, along with patio doors, French doors and sills. Each gets a sealant chosen for the frame and the wall it meets. We work on window sills, composite doors and uPVC windows, and the jobs we see most are damp patches on the reveal after heavy rain and a bead that doesn’t match the frame.
In a smaller place like Farncombe, some walls face open ground and catch the full force of the weather, so exposed windows and doors face the weather head on. That’s hard on the mastic around frames and sills.
Each job carries a 12-month guarantee, large or small.
- Where
- Farncombe (GU7)
- Wider area
- Surrey
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
When something else is needed
Sealant is not the answer to every problem, and we’ll tell you before any work starts. It won’t solve:
- A door that needs adjusting, rehanging or new seals
- A sash or casement that won’t close properly
- A frame that has rotted at the joint
If you’re not sure, just call 0345 464 0079 or drop us an email and we’ll give you a straight answer.
Surfaces we seal
- Patio & French doors
- Aluminium frames
- uPVC windows
- Composite doors
- Timber windows & doors
- Window sills
The process
We keep the work tidy and contained to the area we are working on. Expect the work to take anything from an hour or two to a full day, depending on how many frames there are, and we explain the cure time before we leave. A visit to Farncombe is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- Each frame is looked over and we agree which ones need resealing.
- We remove the old mastic and clean the frame edge and wall.
- Where the gap is deep, backing rod goes in first.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- Every joint is tooled smooth and checked before we leave.
How to prepare
- Mention any sign-in or site rules at work premises
- Tell us about any water getting in
- Tell us about any previous sealing or DIY attempts
Get a quote
Need a quote? Please ring 0345 464 0079 or send us an email with a few details. You will know what we plan to do, and what it will cost, before any work begins.
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Farncombe: your questions answered
I let a flat near Farncombe station. Can you help?
Yes, rental work is part of what we do. You can call 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before work begins.
Do you cover Farncombe for window mastic?
Yes, Farncombe is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or email us and tell us what needs doing, and we’ll send you a clear quote.
Is the work guaranteed?
Yes, for 12 months. Keeping drainage clear and checking the joints yearly helps them last.
How many windows can you do in a day?
The work takes anything from an hour or two to a full day, depending on how many frames there are. Access and the amount of old mastic make the biggest difference.
Do you work on first-floor windows?
Yes, where they can be reached safely. Tell us about access when you get in touch so we can plan the job.
Can you do several jobs on one visit?
Yes, and it often makes sense. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
Can you work on commercial sites?
Yes. We’ve worked for hotels, offices and other businesses, and we’re fully insured.
Is there any odour?
There can be a smell while the sealant cures, but it fades. Opening a window helps.
What we’re called out for in Farncombe
Every frame moves through the day. Sun on a frame makes it expand, and it contracts again overnight, while the brick or render around it hardly moves. A sealant that can’t keep up eventually tears.
If you can see any of these, it’s time to have the joints looked at:
- Untidy mastic left by window fitters
- Black, perished sealant on frames
- Cracked sealant at the sill ends
- Damp patches on the reveal after heavy rain
For site and facilities teams at buildings such as Farncombe Church of England Infant School, the mastic around its windows and doors needs looking after like any other building’s.
Before you book anyone
- Is the old sealant removed completely?
- Which sealant they’ll use, and why
- What happens if the job turns out different
- How the joint is cleaned and prepared
What happens if it’s left?
Draughts and leaks do not always mean new windows. If the frames and glass are in good order, resealing the joints is often all that is needed. If we find failed glass units or worn seals, we’ll tell you. Homes in smaller places like Farncombe can face more weather, and failed outside joints let damp into walls. Indoors, a failed seal lets water into floors and panels as it would anywhere.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed. Ask us for a quote and we will explain what it covers.
Why book with us
- White, clear, grey or another colour, product permitting
- Trusted Arbo and Everbuild sealants
- Every job guaranteed for a year
- Rated 4.9 stars on Google
Quotes for window mastic in Farncombe
Every job gets its own quote. This is what makes a difference:
- The type of sealant required
- Whether the work is at height
- Whether old sealant or filler has to be cut out
- Any mould that needs treating
Doing several joints on one visit normally makes better use of the time than several visits, so tell us about everything that needs sealing. We’ll give you a clear quote for the lot.
Helping us quote
To make quoting easier, let us know:
- A few pictures by email, if you can
- Where the property is
- Whether it’s a home or a business
- Any previous sealing or DIY work
Getting a quote is simple: tell us what needs doing and where and its rough size. Photos by email help us understand the job, and we will take it from there.
DIY versus a professional finish
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
How to look after the new joints
So the new joints stay in good condition:
- Keep paint and stain on wooden frames in good order
- Avoid blasting the frames with a pressure washer
- Wipe condensation off the frames
- Don’t paint over the silicone
Silicone can’t generally be painted, so if you are planning to paint the frames or walls, tell us beforehand. We can use a paintable sealant where that matters.
Wet, windy weather is when failed mastic shows itself, but resealing works best in dry conditions. Sorting cracked mastic early means the joint is sound before the bad weather.