Surrey · England
Godalming Window Mastic
Window mastic in Godalming from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Cracked internal joints between frame and plaster
- White mastic on grey or black frames
- Whistling draughts around closed windows
What affects the quote in Godalming
We quote each job individually. These are the things that affect it:
- The number of rooms or windows
- Which sealant suits the joint
- The old material and how stubborn it is
- The size of the job
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all make a difference.
What we need to know
Photos by email are helpful but not essential. Try to tell us:
- The rough size of the job
- Where the job is, and your postcode
- If someone has resealed it before
- How we’d reach the joints
For a quote, call 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. We will send you a clear quote before any work starts.
How we handle window mastic in Godalming
There are two joints on most windows. Outside, the mastic keeps rain out; inside, the joint between frame and plaster stops draughts and tidies the reveal. We seal one or both, depending on what’s needed. We work on patio & French doors, window sills and timber windows & doors, and people most often call us about rushed sealant from a window installation and sealant in the wrong colour for the frame.
Many houses in smaller places like Godalming have conservatories, garden rooms or patio doors. Their glazing joints and frame seals are as much a part of the job as the windows.
Whatever the size of the job, you get the same 12-month guarantee in Godalming and across Surrey.
- Where
- Godalming (GU7, GU8)
- Wider area
- Surrey
- Guarantee
- 12 months on all our work
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Places near Godalming
More services for Godalming
How to look after the new joints
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Wash the frames with mild soapy water
- Keep jet washers away from the mastic
- Air rooms to keep condensation down around windows
- Keep drainage slots and sill grooves clear
Keep the new mastic undisturbed while it cures, for as long as we advise. Do not point a pressure washer at the joints.
On timber windows, water behind the joint can lead to rot. Once wood has rotted, it needs repair before it can be sealed, so it pays to reseal before that happens.
When it is not the sealant
Sealant is not the answer to every problem, and we’d rather say so up front. It will not solve:
- Worn gaskets, brush seals or a door that has dropped
- A failed sealed unit that has misted up
- Damp coming through the wall itself rather than the frame joint
If in doubt, ring 0345 464 0079 or email us and we’ll say what we think before booking.
Surfaces we seal
- Composite doors
- Aluminium frames
- Timber windows & doors
- uPVC windows
- Window sills
- Patio & French doors
Godalming questions
Do you work for landlords with property near Godalming station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. Just phone 0345 464 0079 or send us an email with the address and what needs doing, and we will give you a clear quote.
Can you do window mastic in Godalming?
Yes. Our work covers London and the South East, and Godalming is part of that. You can call 0345 464 0079 or send us an email and let us know what needs doing.
Can I add another job to the visit?
Yes. Just list everything you need and we’ll quote it together.
Do I need to be at home?
We need access to the joints, so we will agree that with you when we book. For inside work, that normally means someone being in.
Are you ARBOMaster approved?
Yes. Mr Mastic is an ARBOMaster approved applicator.
Is it worth trying it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Do you remove the old sealant?
Yes. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.
Will there be a smell?
Sometimes, a little. It fades as the sealant cures, and ventilation helps.
Why it’s worth doing now in Godalming
Once mastic fails, rain can get between the frame and the wall. Over time that can mean damp patches, damaged plaster and rotting timber. A reseal is a much smaller job. Homes in smaller places like Godalming can face more weather, and failed outside joints let damp into walls. Inside, a split seal lets water into floors and panels just as it would anywhere.
The cost depends on the size of the job, how much old material has to come out and access to the work. You will have a clear quote before any work starts, so you know where you stand.
Why us?
- Old sealant always removed completely
- Neat joints and a tidy finish
- Over 20 years’ experience
- Quality sealants from Arbo and Everbuild
What the job involves on each surface
uPVC windows
The frame is cleaned with a product that will not harm the plastic, then the new bead is laid against the frame and the wall.
Window sills
The end joints of a sill tend to fail before the rest. A tight seal at each end keeps rain out of the wall.
How it works
When we arrive, we look over the joints with you first, so you know exactly what we’re doing. We protect the surfaces around the joints before any work begins. The work normally takes most of a day for a typical house, less for a few frames. In a smaller place like Godalming, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- First, we go round the frames with you and agree the list.
- We remove the old mastic and clean the frame edge and wall.
- Deep gaps get closed-cell backing rod to set the depth.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- We tool each bead neatly and check every joint is closed.
Before we arrive
- Clear the area around the work
- Mention if the joints have been sealed before
- For indoor joints, keep the area dry beforehand if you can
Get a quote
If you are in Godalming and need window mastic, call 0345 464 0079 or email us. Tell us what the problem is and where, and we will agree the price before any work begins.
Advice
Common problems we fix in Godalming
Mastic ages in the weather. UV light hardens the outside of the bead, until it loses its stretch and starts to crack.
The problems people usually mention when they call include:
- Mastic that is falling out in pieces
- Rain getting in at the frame or under the sill
- Rushed sealant from a window installation
- Gaps where the sill meets the wall
In the older streets around St Edmund Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Before booking anyone
- What the quote includes, VAT included or not
- How the joint is cleaned and prepared
- What happens if the job turns out different
- Whether you can choose the colour
Windows and doors in Godalming
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. Historic houses like Loseley Park (about 2.2 miles north) are a reminder that the area around Godalming has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
If you look after a building such as Moss Lane School, its window and door frames need their mastic kept sound, just like a home’s. Letting a property close to Godalming station? Then cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Godalming is about 5 miles south of Guildford, in Surrey. Jobs in Godalming get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Across Surrey, we cover 395 places, Godalming among them. You can also see our page for Crawley, about 19 miles away.
Work in GU7 and GU8 works the same way as everywhere else we cover. If you need window mastic at a property on High Street, Station Road and Market Mews or anywhere close by, we can help. Being close to the A3100 and B2130, Godalming is simple for us to get to for window mastic. Close by, we work in Aaron's Hill (1 mile west), Busbridge (1 mile south-east), Farncombe (1 mile north), Tuesley (1 mile south) and Upper Eashing (1 mile west). Further out, we also cover Guildford (5 miles north), Woking (9 miles north), Camberley (11 miles north-west), Farnham (8 miles west), Dorking (13 miles east) and Frimley (10 miles north-west).
Landmarks near Godalming
Locally, jobs take us to homes and businesses close to The Richmond Arms Public House, Godalming College and St Hilary's School and the streets around them. There’s a railway station in Godalming itself: Godalming station. Other landmarks nearby include Guildford Castle (3.9 miles north-east) and Godalming Museum (less than half a mile north). Open spaces near Godalming include Frith Hill and Farncombe Wood.