Hampshire · England
Damerham Window Mastic
Window and door frames in Damerham need attention? We cut out the old, prepare the joints and apply the right sealant, with a 12-month guarantee.
- Gaps where the sill meets the wall
- Hard, cracked sealant around windows
- Gaps left after new windows were fitted
Window mastic in Damerham, done properly
Mr Mastic’s applicators have more than 20 years’ experience with window and door sealants. We’re fully insured ARBOMaster approved applicators, and we give a 12-month guarantee on the work. If you are dealing with draughty joints inside around the window and cracked or shrunken mastic around the frame, we can put it right, whatever the surface.
Outdoor sealant needs dry, clean surfaces, so work on frames around Damerham is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
Whatever the size of the job, it’s backed by our 12-month guarantee in Damerham and across Hampshire.
- Where
- Damerham (SP6)
- Region
- Hampshire
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
How the job changes by surface
Patio & French doors
Water at the foot of a door frame isn’t always the mastic: blocked drain slots, worn brush seals and threshold details can let water in too. We check before we reseal.
Aluminium frames
Large aluminium doors have long joints down each side and across the head, and the bottom joint sees the most water. Each is cleaned, backed where deep and resealed.
Can I do it myself?
If you’ve already had a go yourself, that’s fine. We cut it out and start again.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
Landlord and commercial work in Damerham
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Letting agents and landlords in Damerham can book us as well as householders. Resealing between tenancies is a simple way to keep a property in good order.
Windows and doors in Damerham
Historic houses like Breamore House (about 3.5 miles north-east) are a reminder that the area around Damerham has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Homes close to Church of St George include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame. Around Damerham, as everywhere, window mastic is only as good as the preparation behind it.
Damerham is in Hampshire. Homes, rented property, offices and hotels in Damerham can book us for window mastic, old or new, large or small. The work is guaranteed for a year. Across Hampshire, we cover 683 places, and Damerham is one of them. There’s also a page for Southampton, roughly 20 miles from Damerham.
Here we cover the SP6 postcode area for window mastic. Window mastic is available to properties on High Street, Green Close and Mill End and the roads around them. We also cover the places around Damerham: Sandleheath (1 mile south-east), Rockbourne (2 miles north), Broxhill (2 miles south), Ashford (2 miles south-east) and Alderholt (2 miles south-east). Larger places within reach include Totton (15 miles east), New Milton (15 miles south-east), Ringwood (7 miles south-east), Fordingbridge (3 miles east), St Leonards (8 miles south) and Brockenhurst (15 miles south-east).
Local landmarks in Damerham
A little further out are Fordingbridge Museum (2.9 miles east) and Cranborne Castle Hill (3.5 miles south-west).
Also near Damerham
Other services in Damerham
FAQs for Damerham
Is window mastic in Damerham guaranteed?
Every job comes with our one-year guarantee, wherever it is. We’re also fully insured and ARBOMaster approved.
Do you cover smaller places like Damerham?
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.
Do you have insurance?
Yes. We are fully insured, and we can confirm the details when we quote.
Do you work for hotels and businesses?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. We can talk about working times when we quote.
Will new mastic stop draughts?
It will if the frame joint is the problem. We find where the air is coming from before we reseal.
Where are you based?
We’re based in Crawley, and we cover South East England, London and all of Scotland.
Do you hold any approvals?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
Do you have sealant for grey or black windows?
Yes. White, brown, anthracite grey, black and clear sealants are all available, so the joint suits the frame.
What sealant work can’t fix
New sealant cannot fix everything, and we’d rather say so up front. Sealant will not put right:
- A failed sealed unit that has misted up
- Broken hinges, locks or handles
- Damp problems in the wall away from the window
If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think before you book.
What we seal
- Composite doors
- Patio & French doors
- Timber windows & doors
- Window sills
- uPVC windows
- Aluminium frames
What we do, step by step
On the day, there’s very little for you to do. Show us the job and we’ll take it from there. The job generally takes a few hours for a handful of frames, longer for a whole house from start to finish. For a village or hamlet like Damerham, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We check each frame and agree which ones need doing.
- 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.
- Finally we tidy up and check each joint.
Getting ready for the visit
- Mention any leaks or damp you’ve noticed
- Plan for the work area to be out of bounds to pets and children
- Clear the area around the work
Get a quote
To get a quote, ring 0345 464 0079 or send us an email with the location and a short description of the problem. We will give you a clear quote before any work starts.
Advice
What affects the cost of window mastic
Some jobs are bigger than they look, and some smaller. What affects the quote:
- Mould in or behind the old joints
- The number and length of the joints
- The number of rooms or windows
- Which sealant suits the joint
We do not show prices on the website, because each job is priced on what it involves. For a quick quote, please call 0345 464 0079 or email us and we will talk you through it.
Asking for a quote
You don’t need to know the technical terms. It helps if you can tell us:
- Where the property is
- Whether it’s a home or a business
- A few pictures by email, if you can
- Any access issues, like height or stairs
For window mastic in Damerham, phone 0345 464 0079 or email us. Tell us what the problem is and where, and you’ll get a clear quote before we start.
Looking after it afterwards
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Keep paint and stain on wooden frames in good order
- Wash the frames with mild soapy water
- Don’t aim a pressure washer at the joints
- Don’t paint over the silicone
A yearly look round the frames is enough. Cracks and lifting edges are easy to spot early.
A small gap around a frame only grows. As old mastic keeps shrinking, the gap widens, and a cold room gets colder. A new joint closes it up.