Hampshire · England
Window & door mastic in Fleet, Hampshire
Window and door frames in Fleet need attention? We cut out the old, prepare the joints and apply the right sealant, with a one-year guarantee.
- Cracked internal joints between frame and plaster
- Cold air getting in at the frame edge
- Leaking joints at the ends of sills
Fleet: your questions answered
Can you help a landlord with a rental near Fleet station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or send us an email and tell us about the property, and we’ll give you a clear price.
Is window mastic in Fleet guaranteed?
Every job comes with our one-year guarantee, wherever it is. We’re fully insured, and an ARBOMaster approved applicator.
Will there be a smell?
Sometimes, a little. It fades as the sealant cures, and ventilation helps.
How long before the joint can be used?
Many sealants skin over quickly but take longer to cure fully. We’ll tell you how long to leave the joint before we leave.
Is it OK to seal over old sealant?
No. New silicone will not bond to old silicone, and it traps any mould or water underneath. It all has to come out first.
Can I do 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.
Can you match the sealant to my frames?
Yes. Anthracite grey, black, brown and white cover most frames, with clear as an option.
Can I paint over the new sealant?
Most silicone can’t be painted. Let us know beforehand, and we will use a paintable product where it suits.
Window mastic in Fleet, done properly
If you can feel air around a shut window, the gap is often at the frame. A new joint stops the air getting through and quietens the whistle on windy days. If the draught is through the window seals instead, we’ll tell you. Typical jobs include draughts coming in around windows and doors and leaking joints at the ends of sills, on timber windows & doors, aluminium frames and window sills.
Around Fleet, many houses have gained conservatories, French doors or replacement windows over time. Each one adds more joints to look after, and those joints age at different rates. Leaks generally start at a sill, a frame head or a glazing joint.
Your job is guaranteed for a year, as with all our work.
- Place
- Fleet (GU51, GU52, GU10)
- Region
- Hampshire
- Cover
- One year on every job
- Price
- A clear price before work begins
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
How it works
Every visit runs the same way: we look at the joints together, mask and protect the surrounding surfaces, do the work and clear up. It normally takes most of a day for a typical house, less for a few frames. A visit in Fleet needs access to the work and a place to park close by. If the job is outside, mention gates, side access and anything above ground floor.
- First, we confirm safe access to each frame.
- Old, cracked mastic is removed completely.
- Frame and wall are cleaned and must be dry before sealing, and primed where the sealant calls for it.
- Backing rod fills deep voids and the sealant goes in on top.
- We tool the joint so water runs off, then clear up.
Preparing for the visit
- Where the joints are inside, avoid wetting them before we arrive
- Tell us about any water getting in
- For business premises, tell us about site rules or sign-in
How to get a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and email pictures if that’s easy.
Read more
Frames and glazing around Fleet
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. With historic houses such as Farnham Castle (about 4.1 miles south) nearby, there’s older building stock in the area around Fleet as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
If you live in an older home near Fleet Methodist Church, the joint between an old wall and a newer frame is usually the first place rain gets in. If you let a flat or house near Fleet station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Fleet is about 13 miles south-east of Reading, in Hampshire. Fleet gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Across Hampshire, we cover 683 places, and Fleet is one of them. Reading is on our list too, about 13 miles from Fleet.
Jobs for window mastic in GU51, GU52 and GU10 works the same way as everywhere else we cover. If you need window mastic at a property on Church Road, Durnsford Avenue and Hankins Court or a nearby road, we can help. Fleet is on the A323 and A3013, so it’s easy for us to get to. We also cover Church Crookham (1 mile south-east), Crookham Village (1 mile west), Elvetham Heath (1 mile north-west), Dogmersfield (2 miles west) and Elvetham (2 miles north-west). We also work in nearby towns such as Basingstoke (11 miles west), Farnborough (3 miles north-east), Aldershot (4 miles south-east), Alton (10 miles south-west), Yateley (4 miles north) and Tadley (14 miles north-west). Fleet is one of the larger places we cover in Hampshire.
Landmarks near Fleet
Locally, jobs take us to homes and businesses close to Court Moor School, The Prince of Wales pub and School, among other places. For rail, the closest station is Fleet station, roughly 1.2 miles north. Nearby you will also find Royal Army Dental Corps Historical Museum (3.9 miles east) and Fleet Community Hospital (1 mile north-west). For a walk, there’s Fleet Pond Nature Reserve and Hitches Hill.
Keeping the joints in good condition
Simple care keeps the joints in good condition. Our advice:
- Wash the frames with mild soapy water
- Walk round the house once a year and look at the joints
- Wipe condensation off the frames
- Keep paint off silicone joints
Try not to touch the new joint while it cures, for as long as we advise. Don’t point a pressure washer at the joints.
Draughts get worse, not better. As the old mastic shrinks further, more air gets through, and heat escapes around the frame. A new joint closes it up.
Why it’s worth doing now in Fleet
Running fresh sealant over the old joint is tempting, but new sealant can’t bond to old, crumbling mastic. It soon lifts and the leak carries on behind it. The old mastic has to come out. In Fleet, as anywhere, most leaks start as a small gap in a joint, and early is when they’re cheapest and quickest to sort.
Doing several joints on one visit normally makes better use of the time than several visits. You’ll get one clear quote for the whole job.
What you get with us
- Colour picked to suit the job
- More than 20 years in sealant work
- Fully insured
- We agree the colour with you first
Take a look at our cost guide or customer reviews.
Towns and villages near Fleet
What else we do in Fleet
What the job involves on each surface
Composite doors
If the door itself is draughty, the issue may be the door seals or hinges rather than the frame mastic. We will tell you if that is what we find.
uPVC windows
We clean the frame edge carefully so the plastic is not marked, then the sealant goes in between frame and wall.
When to call us in Fleet
Joint shape matters as much as the product. A skim of sealant over a wide gap soon tears, and a gap filled solid cannot flex. Backing rod sets the right depth.
If you can see any of these, it’s time to have the joints looked at:
- Mastic that’s falling out in pieces
- Cold air getting in at the frame edge
- Gaps left after new windows were fitted
- Mastic that has split away from the wall
For site and facilities teams at buildings such as Heatherside Junior School, its window and door frames need their mastic kept sound, just like a home’s.
What your quote should include
- What happens if they find a problem under the old sealant
- How long the guarantee is
- Is VAT in the price?
- What the cure time is
For landlords and businesses
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
What sealant work cannot fix
Sealant is not the answer to every problem, and we’ll tell you before work begins. Sealant won’t put right:
- A failed sealed unit that has misted up
- Draughts through the window seals rather than the frame
- Faulty window hardware
If you are not sure, just call 0345 464 0079 or drop us an email and we will give you a straight answer.
Where we work in Fleet
- Patio & French doors
- Aluminium frames
- Timber windows & doors
- uPVC windows
- Composite doors
- Window sills