Hampshire · England
Window & door mastic in Lyde Green, Hampshire
Mastic around window and door frames, sills and patio doors in Lyde Green, with a 12-month guarantee on every job. Call for a quick quote.
- Gaps where the sill meets the wall
- Untidy mastic left by window fitters
- Mastic that has split away from the wall
Looking after it afterwards
Simple care keeps the joints in good condition. We recommend:
- Clear any debris from frame drain holes
- Air rooms to keep condensation down around windows
- Keep timber frames painted
- Keep jet washers away from the mastic
Have a look at the joints once a year, ideally after winter. Small splits are simple to catch before they leak, and if anything looks wrong, just call 0345 464 0079 or send us an email.
Look out for the warning signs: cracks in the mastic, gaps you can see light through, damp on the reveal or mould around the inside of the frame. Any of these is worth a call.
Window mastic in Lyde Green, done properly
The mastic around a window or door seals the gap between the frame and the wall. Once that seal fails, wind and rain find the gap. The old mastic is removed and the joint resealed with a flexible exterior sealant. We work on window sills, uPVC windows and aluminium frames, and the jobs we see most are gaps left after new windows were fitted and mastic that’s falling out in pieces.
Mastic can only go onto a dry, clean joint, so window work in Lyde Green is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
All our work comes with a 12-month guarantee.
- Where
- Lyde Green (RG27)
- Region
- Hampshire
- Cover
- 12 months on all our work
- Quote
- A clear price before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026

Nearby places to Lyde Green
More services for Lyde Green
Surface by surface
uPVC windows
We clean the frame edge carefully so the plastic isn’t marked, then the sealant goes in between frame and wall and tooled smooth.
Patio & French doors
Heavy door frames can move more than windows. The sealant must cope with it without cracking.
Window mastic in Lyde Green: local notes
With historic houses such as Stratfield Saye House (about 2.8 miles north) nearby, there’s older building stock in the area around Lyde 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. Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Letting a property close to Hook station? Then cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. Schools such as Whitewater Church of England Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s. If you live in an older home near Rotherwick Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Lyde Green is about 6 miles north-east of Basingstoke, in Hampshire. Across the RG27 area, we can carry out window mastic at your property. Lyde Green is one of 683 places in Hampshire we cover for window mastic. We also work in Reading, around 10 miles away.
Jobs for window mastic in RG27 works the same way as everywhere else we cover. Close by, we work in Rotherwick (1 mile south-east), Mattingley (2 miles east), Hound Green (2 miles north-east), Heckfield (2 miles north-east) and Hazeley (3 miles north-east). Further out, we also cover Basingstoke (6 miles south-west), Farnborough (9 miles east), Fleet (7 miles east), Aldershot (11 miles south-east), Alton (11 miles south) and Yateley (7 miles east).
Around Lyde Green
We work in homes and buildings around Coach And Horses Public House and the streets around them. The closest station to Lyde Green is Hook station, about 2.2 miles south-east of the centre. Other landmarks nearby include West Green House Agricultural Museum (2.3 miles east) and Basingstoke and North Hampshire Hospital (5.8 miles west). Open spaces near Lyde Green include The Mill Field and Dogmersfield Lake.
Should I try it myself first?
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.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
How it works
When we get to you, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. Most jobs then take a few hours for a few frames, or a day or more for a whole house. Somewhere as small as Lyde Green, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We check each frame and agree which ones need doing.
- We remove the old mastic and clean the frame and the wall.
- Deep gaps are filled with backing rod to set the depth.
- A flexible, weatherproof sealant is applied in a colour to suit the frame.
- Every joint is checked before we leave.
Before we arrive
- Tell us if parking is tricky
- Clear items away from the joints we’re working on
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
We quote each job on its own. Just call 0345 464 0079 or drop us an email with the details and send photos if you have them.
Related advice
What sealant work can’t fix
We’d rather tell you now than do work that will not last, so these are the limits:
- Broken hinges, locks or handles
- Soft or decayed wood in the frame
- Damp coming through the wall itself rather than the frame joint
Not sure which it is? You can call 0345 464 0079 or drop us an email and we’ll tell you honestly.
Where we work in Lyde Green
- Aluminium frames
- Timber windows & doors
- uPVC windows
- Patio & French doors
- Window sills
- Composite doors
Leave it or put it right?
Running fresh sealant over the old joint is tempting, 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 Lyde Green, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
The cost depends on the size of the job, how hard the old material is to remove and access to the work. You’ll have a clear quote before any work starts.
Why us?
- Tidy, careful work
- Approved under the ARBOMaster scheme
- Anti-fungal silicone where joints get wet
- Trusted Arbo and Everbuild sealants
Quotes for window mastic in Lyde Green
For a quick quote, just ask. What matters most is:
- Mould in or behind the old joints
- The old material and how stubborn it is
- Working hours on commercial sites
- How much there is to do
We do not show prices on the website, because the cost depends so much on the job itself. For a quick quote, please ring 0345 464 0079 or send us an email.
Helping us quote
To help us quote quickly, please include:
- The rough size of the job
- The type of property
- The problem you’ve noticed
- Pictures of the joints, sent by email
Want a quote for window mastic? Please ring 0345 464 0079 or send us an email with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
FAQs for Lyde Green
Do you work for landlords with property near Hook station?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before any work starts.
Can you do window mastic in Lyde Green?
Yes, Lyde Green is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job, and we’ll give you a clear quote.
Do you hold any approvals?
Yes. We’re an ARBOMaster approved applicator.
Can you reach windows above the ground floor?
Usually, yes. We plan safe access before the job.
Do you have insurance?
Yes. We are fully insured, and we’ve been doing sealant work for more than 20 years.
Will the old sealant be removed?
Yes, always, and completely. New sealant will not bond properly to old, so any old material comes out before anything new goes in.
Where is Mr Mastic based?
We are based in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
Can resealing stop a draught around my window?
Often, yes. Air often gets in between the frame and the wall, and resealing inside and out closes it.
