Hampshire · England
Window Mastic in Shalden Green
Our applicators work in Shalden Green on mastic around window and door frames, sills and patio doors. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- A bead that does not match the frame
- Cracked internal joints between frame and plaster
- Mastic that has split away from the wall
About our window mastic in Shalden Green
Frames and walls do not move together. Plastic and aluminium frames move with the temperature, while masonry stays fairly still. So the sealant has to stretch and recover, which is why we use a low-modulus product. If you’re dealing with leaking joints at the ends of sills and cracked internal joints between frame and plaster, we can help.
Homes in small places like Shalden Green often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.
We stand behind the work with a one-year guarantee.
- Place
- Shalden Green (GU34)
- Region
- Hampshire
- Cover
- One year on every job
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
The process
We keep the work tidy and contained to the joints we are treating. Expect the work to take a few hours for a handful of frames, longer for a whole house, and we explain the cure time before we leave. For a village or hamlet like Shalden Green, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We check how each frame can be reached safely.
- All the failed sealant is cut away, along with any loose debris.
- The surfaces are cleaned and left dry.
- Deep voids are backed, then the sealant is gunned in.
- We tool the joint so water runs off, then clear up.
How to prepare
- Mention if the joints have been sealed before
- Let us know if you’ve seen damp or leaks
- Mention any tricky access
Getting a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we will talk you through the work and send you a clear quote.
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Can I do it myself?
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is.
Shalden Green questions
I let a flat near Alton station. Can you help?
Yes, landlords and agents are among the people we work for. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.
Will you come out to Shalden Green?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Is it worth trying it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Are you an approved applicator?
Yes. Mr Mastic is an ARBOMaster approved applicator and we are fully insured too.
What does window mastic cost?
It depends on the job, so we quote each one individually. To get one, call 0345 464 0079 or send us an email and tell us what needs doing and where.
Will you leave a mess?
No. We protect the surfaces around the joints, and we tidy up before we go.
How long should I leave it?
It depends on the product and the temperature. We tell you how long to leave it before we go.
Do you guarantee window mastic?
Yes. Each job is covered for 12 months, inside or out.
Landlords, agents and businesses in Shalden Green
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.
Quotes for window mastic in Shalden Green
Every job gets its own quote. This is what makes a difference:
- Any working-time requirements on site
- How much old sealant there is and how hard it is to remove
- How many areas need sealing
- Whether the work is at height
We don’t show prices on the website, because each job is priced on what it involves. Call for a quick quote.
Helping us quote
To help us quote quickly, let us know:
- Access, such as stairs, a lift or height
- Pictures of the joints, sent by email
- What the problem is, such as mould, gaps, leaks or cracking
- The address or postcode of the job
Getting a quote is simple: let us know the job and the location and its rough size. A few pictures by email make the job easier to understand, and we’ll take it from there.
Leave it or put it right?
A quick bead over the top of old mastic looks like an easy fix, but it will not grip old, dirty sealant. It peels before long, and water still gets in behind. Proper resealing starts with removing the old joint. In a small place like Shalden Green, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
Why Shalden Green customers choose us
- Homes, businesses and hotels
- 180+ five-star Google reviews
- Neat joints and a tidy finish
- Sealant colour chosen to suit
What we are called out for in Shalden Green
A lot of older mastic was never designed to stay flexible. Once it’s rigid, every bit of frame movement pulls at it, leaving a hairline gap down one side.
Common reasons people contact us are:
- Whistling draughts around closed windows
- Mastic that is falling out in pieces
- Sealant in the wrong colour for the frame
- Cracked internal joints between frame and plaster
Rented homes near Alton station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints.
What to look for in a quote
- What product goes in the joint
- How the surfaces are prepared before sealing
- Whether they’re fully insured
- What happens if they find a problem under the old sealant
Also in Shalden Green
What the job involves on each surface
Timber windows & doors
On period timber windows, traditional sand mastic is sometimes the better choice. We’ll tell you which suits your home.
Aluminium frames
Coated aluminium needs a compatible sealant, and acetoxy silicones are not used, as they can attack some metals. Neutral-cure sealant is the safe choice.
What window mastic looks like in Shalden Green
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Hall Place (about 3.1 miles south-west) nearby, there’s older building stock in the area around Shalden Green as well as newer homes. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
Historic houses such as Hall Place, about 3.1 miles south-west, show how far back building around Shalden Green goes, and older homes nearby need a sealant that suits their walls.
Shalden Green is about 3 miles north-west of Alton, in Hampshire. From the centre of Shalden Green to the outskirts, we cover window mastic for every kind of property. Shalden Green is one of 683 towns and villages in Hampshire we cover for window mastic. Reading is on our list too, about 18 miles from Shalden Green.
Jobs for window mastic in GU34 works the same way as everywhere else we cover. Other places close to Shalden Green include Shalden (1 mile south), Southrope (2 miles north-west), Bagmore (2 miles west), Burkham (3 miles west) and Bentworth (3 miles south-west). Larger places within reach include Basingstoke (7 miles north-west), Farnborough (13 miles north-east), Fleet (9 miles north-east), Aldershot (11 miles east), Alton (3 miles south-east) and Petersfield (13 miles south).
Landmarks near Shalden Green
Typical jobs here are in homes near The Golden Pot pub and the streets around them. For rail, the closest station is Alton station, about 2.9 miles south-east. Other landmarks nearby include Gliding Heritage Centre (0.9 miles west) and Alton Community Hospital (3.3 miles south). Open spaces near Shalden Green include Holybourne Hill.