Hampshire · England
Dunbridge Window Mastic
Problem with your window and door frames in Dunbridge? We cut out the old, prepare the joints and apply the right sealant.
- Untidy mastic left by window fitters
- Cracked internal joints between frame and plaster
- Sealant in the wrong colour for the frame
What the job involves on each surface
Composite doors
Composite doors are normally hung in an uPVC-type frame, and the joint around it is sealed like a window. The bead is colour-matched to the frame.
Patio & French doors
Not every patio door leak is a mastic problem: blocked drain slots, worn brush seals and threshold details can let water in too. We check before we reseal.
Window mastic in Dunbridge, done properly
Around Dunbridge we seal all kinds of frames: uPVC, aluminium, timber and composite, plus patio doors, French doors and sills. The sealant is chosen to suit the frame material and the wall. If you’re dealing with gaps between the frame and the inside reveal and cracked or shrunken mastic around the frame, we can put it right, whatever the surface.
Mastic can only go onto a dry, clean joint, so window work in Dunbridge is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we will sort it.
- Where
- Dunbridge (SO51)
- Wider area
- Hampshire
- Cover
- One year on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
How to look after the new joints
After the cure time, these simple habits help:
- Do not aim a pressure washer at the joints
- Avoid harsh chemicals near the mastic
- Wipe condensation off the frames
- Wash the frames with mild soapy water
On timber frames, keep the paintwork in good order, because bare, wet timber moves more and pulls at the joint. Keep paint off the silicone itself.
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.
How we quote for window mastic
Jobs vary more than people expect. The main factors:
- The number of rooms or windows
- The number and length of the joints
- When we can work, for business premises
- The type of sealant required
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you’re unsure, call 0345 464 0079 or send us an email for an honest opinion and a quote.
Helping us quote
To make quoting easier, please include:
- The address or postcode of the job
- Whether it’s a home or a business
- Any access issues, like height or stairs
- The rough size of the job
Need a quote? Please phone 0345 464 0079 or drop us an email and tell us about the job. We will explain what we’d do and send you a clear quote before any work starts.
FAQs for Dunbridge
Do you cover Dunbridge for window mastic?
Yes, Dunbridge is within the area we cover. Our work covers London and the South East. You can ring 0345 464 0079 or email us and tell us what needs doing, and we will give you a clear quote.
Is Dunbridge within the area you cover?
Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Are you insured?
Yes. We’re fully insured for every job we do.
Can you quote for more than one area?
Yes, and it often makes sense. Doing several areas at once is usually more efficient, so mention them when you ask for a quote.
Can you do the inside joint as well?
Yes. The outside joint keeps the weather out, and the inside joint stops draughts and finishes the reveal. We can do either or both.
Will you leave a mess?
Not at all. The area is protected while we work and cleaned up afterwards.
How long does it take to reseal the windows on a house?
It depends on access, the old mastic and the size of the frames. You’ll know the timing when we quote.
Does someone need to be in?
It depends on the job. Inside work needs someone to give us access, and for outside work we will agree access with you when we book.
Work for landlords, hotels and businesses
We also work for property managers and facilities teams. We can quote a run of properties together, and we’re fully insured for the work.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
Frames and glazing around Dunbridge
Historic houses like Mottisfont Abbey (about 0.7 miles north-east) are a reminder that the area around Dunbridge 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 is traditional sand mastic. The South East is one of 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 let a flat or house near Mottisfont & Dunbridge station, renewing tired window mastic between tenants heads off draught and damp complaints. Managing a site like Awbridge Primary School? Then its window and door frames need their mastic kept sound, just like a home’s.
Dunbridge is about 4 miles north-west of Romsey, in Hampshire. Homes, rented property, offices and hotels in Dunbridge can book us for window mastic. The work is guaranteed for a year. Dunbridge is one of 683 towns and villages in Hampshire where we work. You can also see our page for Southampton, about 10 miles away.
Postcode districts we cover here for window mastic: SO51. We also cover the places around Dunbridge: Mottisfont (1 mile north-east), Kimbridge (1 mile south-east), Stonymarsh (1 mile north-east), Carter's Clay (1 mile south-west) and Lockerley (1 mile west). Further out, we also cover Winchester (10 miles east), Eastleigh (10 miles south-east), Andover (13 miles north), Totton (8 miles south), Chandler's Ford (8 miles south-east) and Hedge End (13 miles south-east).
Near you in Dunbridge
We work in homes and buildings around The Bear And Ragged Staff Public House and the streets around them. Dunbridge has its own railway station: Mottisfont & Dunbridge station. Nearby you will also find Romsey Community Hospital (3.9 miles south-east) and King Johns House (3.5 miles south-east).
What we do, step by step
When we arrive, we look over the joints with you first, so there are no surprises. Surfaces next to the work are protected before any work begins. Most jobs take a few hours for a handful of frames, longer for a whole house. Somewhere like Dunbridge needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- First, we go round the frames with you and agree the list.
- We remove the old mastic and clean the frame edge and wall.
- Where the gap is deep, backing rod goes in first.
- A flexible exterior sealant is applied in a colour to suit the frame.
- We tool each bead neatly and check every joint is closed.
How to prepare
- Tell us about any previous sealing or DIY attempts
- Plan for the work area to be out of bounds to pets and children
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
We do not publish a price list. Instead, we send you a clear quote for your job. To arrange one, call 0345 464 0079 or email us.
Advice
Do you need window mastic in Dunbridge?
Plenty of failed mastic was poorly applied in the first place. Mastic laid onto dusty, damp or crumbling surfaces never bonded as it should, and it lets go sooner than it should.
If you can see any of these, it’s time to have the joints looked at:
- Mastic that is falling out in pieces
- Draughts coming in around windows and doors
- Water coming in at the bottom corners of a door
- White mastic on grey or black frames
If you live in an older home near Church of St Andrew, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Questions to ask before booking
- When the joint can take water or movement
- Are they insured?
- Whether they seal over old material or remove it
- How hidden problems are handled
Why it’s worth doing now in Dunbridge
Not every sealant suits a window. Decorators’ caulk and bathroom silicone aren’t designed for outside joints that move. A low-modulus exterior sealant keeps its stretch through hot and cold weather. In a small place like Dunbridge, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What you get with us
- Homes, businesses and hotels
- Colour picked to suit the job
- Tidy, careful work
- White, clear, grey or another colour, product permitting
Take a look at how sealant jobs are priced or what customers say.