Surrey · England
Window & door mastic in Hamsey Green, Surrey
Mastic around window and door frames, sills and patio doors for homes and businesses in Hamsey Green and across Surrey. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Cracked or shrunken mastic around the frame
- Cracked sealant at the sill ends
- Damp patches on the reveal after heavy rain
What affects the cost of window mastic
There’s no set price list. What we look at:
- How much old sealant there is and how hard it is to remove
- The size of the job
- How many rooms, windows or areas are involved
- The product the joint needs
Homes and businesses are quoted the same way: the amount of work, the access and the products needed. Call for a quick quote and we will go through it with you.
What we need to know
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- The problem you’ve noticed
- The type of property
- A few pictures by email, if you can
- If someone has resealed it before
For a quote, ring 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. You’ll have a clear quote before we start.
How we handle window mastic in Hamsey Green
From a single sill to a whole house of windows, the work is priced before anything is done. To get one, ring 0345 464 0079 or drop us an email with the number of frames and any access details. If you have water coming in at the bottom corners of a door and gaps between the frame and the inside reveal, we can help, whatever the surface.
In a village or hamlet like Hamsey Green, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these don’t always suit modern silicone, so the sealant has to be chosen to suit the building.
Big or small, you get the same one-year guarantee in Hamsey Green and across Surrey.
- Place
- Hamsey Green (CR6, CR2)
- Region
- Surrey
- Cover
- A year, on every job
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Can I do it myself?
If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Frames and glazing around Hamsey Green
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 Addington Palace (about 2.8 miles north) nearby, there’s older building stock in the area around Hamsey Green as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
In the older streets around St Antony, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Schools such as Hamsey Green Primary are buildings too, and its window and door frames need their mastic kept sound, just like a home’s. If you let a flat or house near Upper Warlingham station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Hamsey Green is about 1 mile north of Warlingham, in Surrey. Homes, rented property, offices and hotels in Hamsey Green is covered for window mastic. Every job comes with our 12-month guarantee. Our Surrey coverage runs to 395 places, and Hamsey Green is one of them. Our London page covers work nearby.
Every address in CR6 and CR2 is within our area for window mastic. Whether your property is on Clyde Avenue, Crewe's Lane and Princes Avenue or anywhere close by, our applicators can take on the job. We also cover Warlingham (1 mile south), Whyteleafe (1 mile south-west), Chelsham (1 mile east), Sanderstead (1 mile north-west) and Farleigh (1 mile east). We also work in nearby towns such as Epsom (9 miles west), Horley (11 miles south-west), Redhill (7 miles south-west), Ewell (9 miles west), Reigate (8 miles south-west) and Caterham (3 miles south-west).
What’s near Hamsey Green
In Hamsey Green, that means homes and buildings near Blanchman's Farm, The White Lion Public House and Warlingham School, among other places. For rail, the closest station is Upper Warlingham station, roughly 1 mile south-west of the centre. A little further out are Warlingham Park Hospital (1.4 miles east) and East Surrey Museum (2.6 miles south). Open spaces near Hamsey Green include South London Downs National Nature Reserve and Nore Hill.
Towns and villages near Hamsey Green
More services for Hamsey Green
The process
Before we leave, we go over the finished joints with you and tell you how long to leave it. The visit itself generally takes anything from an hour or two to a full day, depending on how many frames there are, depending on the size of the job. In a small place like Hamsey Green, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- First we look at every frame and agree the list.
- Next the failed sealant is cut away and the joint cleaned.
- Deep gaps are filled with backing rod to set the depth.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- Every joint is checked before we leave.
Preparing for the visit
- Keep pets and children clear of the area while we work
- For indoor joints, keep the area dry beforehand if you can
- Let us know about earlier repairs to the joints
How to get a quote
Every job is quoted individually. Simply call 0345 464 0079 or send us an email and describe the job, and photos are welcome.
Related advice
When it is not the sealant
A few problems are outside what sealant work can do:
- A frame that has rotted at the joint
- Penetrating damp from a failed cavity tray or render
- A sash or casement that won’t close properly
If you are not sure, just ring 0345 464 0079 or send us an email and we’ll give you a straight answer.
What we seal
- Patio & French doors
- Timber windows & doors
- Aluminium frames
- Composite doors
- uPVC windows
- Window sills
For landlords and businesses
We work for landlords and letting agents as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order.
For anyone letting property in or around Hamsey Green, jobs at different addresses can go on one quote. Send us the addresses and the work at each.
Common questions in Hamsey Green
Do you cover Hamsey Green for window mastic?
Yes, Hamsey Green is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or email us with a few details of the job, and we’ll give you a clear price.
I let a flat near Upper Warlingham station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.
How much does window mastic cost in Hamsey Green?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote and we’ll talk you through it.
Do you work on first-floor windows?
Normally, yes. We plan safe access before the job, so mention the height and anything in the way.
Should I try DIY first?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.
Can you quote for more than one area?
Of course. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
Do you hold any approvals?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
Can I paint over the new sealant?
Not if it’s silicone. We choose the product with your decorating in mind, so mention it when you book.
What the job involves on each surface
Timber windows & doors
Wood swells when it’s wet and shrinks when it dries, so a flexible sealant is essential. The paint or stain needs to be sound where the sealant meets it.
Aluminium frames
Coated aluminium needs a compatible sealant and we avoid acetoxy silicones, which can react with some metals. Neutral-cure sealant is the safe choice.
Looking after it afterwards
Good habits help new joints last longer. A few tips:
- Do not aim a pressure washer at the joints
- Avoid harsh chemicals near the mastic
- Keep timber frames painted
- Walk round the house once a year and look at the joints
Check the drainage slots in the frames aren’t blocked, so rain drains out rather than building up at the sealant.
Water trapped behind a failed joint can start rot in timber frames and sills. Once wood has rotted, it needs repair before it can be sealed, so it pays to reseal before that happens.