Hampshire · England
Window & door mastic in Tidworth, Hampshire
Mastic around window and door frames, sills and patio doors for homes and businesses in Tidworth and across Hampshire. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Untidy mastic left by window fitters
- Water coming in at the bottom corners of a door
- Leaking joints at the ends of sills
Landlord and commercial work in Tidworth
Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.
Landlords and agents in Tidworth can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order.
Window mastic for homes and businesses in Tidworth
Most frames have an outside joint and an inside one. Outside, the mastic keeps rain out; the internal joint closes the gap to the plaster and stops draughts. We seal one or both, depending on what’s needed. Typical jobs include cracked sealant at the sill ends and cracked or shrunken mastic around the frame, on timber windows & doors, uPVC windows and patio & French doors.
Many houses in smaller places like Tidworth have conservatories, garden rooms or patio doors. Their glazing joints and frame seals are as much a part of the job as the windows.
There’s a 12-month guarantee on every job, whatever its size.

- Place
- Tidworth (SP9)
- Region
- Hampshire
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Also near Tidworth
Also in Tidworth
Can I do it myself?
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
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 doesn’t work out, we can still put it right.
Quotes for window mastic in Tidworth
For a quick quote, just ask. What matters most is:
- How many areas need sealing
- Whether the work is at height
- Working hours on commercial sites
- The old material and how stubborn it is
Combining jobs into one visit usually makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. We’ll send you a clear quote for the lot.
Helping us quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- Photos by email, if that’s easy
- If someone has resealed it before
- Roughly how big the job is
- Any access issues, like height or stairs
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we will explain what’s involved and give you a clear quote.
What we do, step by step
A visit follows a simple pattern: we check the joints, protect the area around them, do the work and clear up. It generally takes a morning for a couple of windows and a door. In a smaller place like Tidworth, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- Each frame is looked over and we agree which ones need resealing.
- We remove the old mastic and clean the frame edge and wall.
- Deep gaps get closed-cell backing rod to set the depth.
- A flexible exterior sealant is applied in a colour to suit the frame.
- Every joint is tooled smooth and checked before we leave.
Preparing for the visit
- Keep pets and children clear of the area while we work
- Let us know about earlier repairs to the joints
- Try not to wet indoor joints just before the visit
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 photos if that’s easy.
Related advice
What window mastic looks like in Tidworth
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you look after a building such as The Wellington Academy, larger buildings have plenty of frames, and the mastic around each one ages. In the older streets around Church of the Holy Trinity, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Tidworth is about 8 miles west of Andover, in Hampshire. Homes, rented property, offices and hotels in Tidworth is covered for window mastic, old or new, large or small. Every job comes with our 12-month guarantee. Tidworth is one of 683 places in Hampshire we cover. You can also see our page for Southampton, roughly 25 miles from Tidworth.
All of SP9 is covered for window mastic, from the main roads to the quietest streets. We cover properties on Station Road, Pennings Road and Ebble Close and the roads around them. Tidworth sits on or near the A338 and A3026, which makes travel easy. Close by, we work in Perham Down (1 mile east), Ludgershall (2 miles north-east), Shipton Bellinger (2 miles south), Great Shoddesden (2 miles east) and Kimpton (3 miles east). We also work in nearby towns such as Andover (8 miles east), Whitchurch (14 miles east), East Anton (9 miles east), Picket Piece (10 miles east), Picket Twenty (9 miles east) and Finkley Down (10 miles east).
Landmarks near Tidworth
We work in homes and buildings around Clarendon Infants' School. A little further out are Ludgershall Castle (2.2 miles north-east). Not far away are Quarley Hill.
What the job involves on each surface
Timber windows & doors
On period timber windows, traditional sand mastic is sometimes the better choice. We can talk through the options.
Aluminium frames
Metal frames expand in the sun and are often slim, with little room for error. A neat, narrow bead in a colour to match suits the frame.
When it is not the sealant
Some problems need a builder, plumber or other trade rather than us:
- Misting between the panes of a double-glazed unit (that needs a new unit)
- Rotten timber, which needs a joiner first
- Broken hinges, locks or handles
If you are not sure, just call 0345 464 0079 or send us an email and we will give you a straight answer.
What we seal
- Patio & French doors
- Window sills
- uPVC windows
- Composite doors
- Timber windows & doors
- Aluminium frames
What happens if it’s left?
If you’re painting or rendering, reseal at the same time. Fresh joints finish the job neatly. Homes in smaller places like Tidworth can face more weather, and failed outside joints let damp into walls. Inside, a split seal lets water into floors and panels just as it would anywhere.
What it costs 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, so you know where you stand.
Why choose Mr Mastic in Tidworth
- We leave the area clean and tidy
- More than 20 years in sealant work
- Quality sealants from Arbo and Everbuild
- Sanitary silicone with an anti-fungal additive in wet areas
Read our cost guide or what customers say.
Your questions about window mastic in Tidworth
Is window mastic in Tidworth guaranteed?
Every job comes with our one-year guarantee, wherever it is. We are fully insured, and an ARBOMaster approved applicator.
Do you cover smaller places like Tidworth?
Yes, Tidworth is covered. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Are you insured?
Yes. We’re fully insured, and we can confirm the details when we quote.
What do you need from me for a quote?
Where the job is, what the problem is and roughly how big it is. If you can, email a few pictures.
Can you do several jobs on one visit?
Yes, and it often makes sense. Combining jobs makes good use of the visit.
Is there any odour?
That depends on the sealant. Some products have a noticeable smell, others very little.
Can you seal the gap between the frame and the plaster indoors?
Yes. Draughts often come through the inside gap too, so sealing both is often worthwhile.
Do you work on first-floor windows?
Normally, yes. Access is planned before work begins, so mention the height and anything in the way.
