Hampshire · England
Window & door mastic in Woodside, Hampshire
Problem with your window and door frames in Woodside? We cut out the old, prepare the joints and apply the right sealant.
- Cold air getting in at the frame edge
- Untidy mastic left by window fitters
- Cracked sealant at the sill ends
Landlords, agents and businesses in Woodside
We also work for property managers and facilities teams in Woodside and across Hampshire. We can quote a run of properties together.
Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Window mastic for homes and businesses in Woodside
Homes in Woodside have every kind of window: 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 are dealing with untidy mastic left by window fitters and damp patches on the reveal after heavy rain, we can put it right, on window sills, uPVC windows and composite doors alike.
Mastic can only go onto a dry, clean joint, so window work in Woodside is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.
The work is guaranteed for twelve months. If something is not right with it in that time, tell us and we will put it right.
- Place
- Woodside (SP11)
- Region
- Hampshire
- Cover
- One year on every job
- Price
- A clear price before we start
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Surface by surface
Composite doors
Draughts round the door leaf usually come from worn seals or adjustment, not the mastic. We’ll tell you if that is what we find.
Timber windows & doors
Soft or rotten wood cannot be sealed successfully. If we find rot, we will tell you before going ahead, as that is a job for a joiner.
How it works
You do not need to clear the whole room or building before we come, only the area right around the joints. We protect the rest, and the job takes most of a day for a typical house, less for a few frames for a typical job. In a small place like Woodside, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- First, we go round the frames with you and agree the list.
- The old mastic is cut out and scraped back to clean surfaces.
- Where the gap is deep, backing rod goes in first.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- We tool each bead neatly and check every joint is closed.
Before we arrive
- Clear items away from the joints we’re working on
- Mention any leaks or damp you’ve noticed
- Mention any parking rules near the property
Ask for a quote
There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, ring 0345 464 0079 or send us an email.
Read more
Towns and villages near Woodside
What else we do in Woodside
DIY sealant or a professional job?
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.
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
Frames and glazing around Woodside
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Homes close to Church of St Mary include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Woodside is about 7 miles north of Andover, in Hampshire. Woodside 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 Woodside is one of them. Our Reading page covers work nearby, about 26 miles away.
We work across the SP11 postcode area for window mastic and the streets around it. We also cover Vernham Dean (1 mile east) and Bagshot (6 miles north). Within a short drive, we also cover Andover (7 miles south), Tidworth (8 miles south-west), Ludgershall (6 miles south-west), Whitchurch (10 miles south-east), East Anton (6 miles south-east) and Overton (12 miles east).
Local landmarks in Woodside
Locally, jobs take us to homes and businesses close to The George Inn and the streets around them. Green spaces nearby include Inkpen Hill.
When to call us in Woodside
A lot of older mastic was never designed to stay flexible. Once it has hardened, the frame’s movement tears it from the wall, leaving a hairline gap down one side.
The problems people usually mention when they call are:
- Cold air getting in at the frame edge
- Hard, cracked sealant around windows
- Black, perished sealant on frames
- Draughty joints inside around the window
For site and facilities teams at buildings such as Vernham Dean Gillum's Church of England Primary School, its window and door frames need their mastic kept sound, just like a home’s.
Comparing quotes
- What the cure time is
- How the colour is chosen
- Whether the sealant suits the joint
- Whether they’re fully insured
Honest limits
We will not take on work that will not last, so here’s what sealant can’t put right:
- Soft or decayed wood in the frame
- A failed sealed unit that has misted up
- Damp problems in the wall away from the window
If you’re not sure, just ring 0345 464 0079 or drop us an email and we will give you a straight answer before you book.
Joints and surfaces we work on
- Window sills
- uPVC windows
- Aluminium frames
- Patio & French doors
- Composite doors
- Timber windows & doors
Questions from Woodside
Do you cover Woodside for window mastic?
Yes. Our work covers London and the South East, and Woodside is part of that. You can ring 0345 464 0079 or drop us an email and let us know what needs doing, and we’ll send you a clear quote.
Is window mastic in Woodside guaranteed?
All our work, in Woodside and everywhere else, comes with a 12-month guarantee. We’re fully insured, and an ARBOMaster approved applicator.
Do you remove the old sealant?
Yes. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
Can you do several jobs on one visit?
Yes. Just list everything you need.
Which products do you use?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We explain the product when we quote.
Where is Mr Mastic based?
Our base is in Crawley, and we work across South East England, London and Scotland.
Are you fully insured?
Yes. We’re fully insured, and we have been doing sealant work for more than 20 years.
Is it messy?
No. We protect the surfaces around the joints, and we tidy up before we go.
Why it’s worth doing now in Woodside
Once mastic fails, rain can get between the frame and the wall. Over time that can mean damp patches, damaged plaster and rotting timber. Resealing now is a small job by comparison. Older cottages and farmhouses around Woodside can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
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. You will know the price before we begin.
What you get with us
- A 12-month guarantee on all work
- Trusted Arbo and Everbuild sealants
- Over 20 years’ experience
- Tidy, careful work
Read what affects the cost and customer reviews.