Hampshire · England
Window & door mastic in Wallington, Hampshire
Window and door frames in Wallington need attention? We cut out the old, prepare the joints and apply the right sealant, with a 12-month guarantee.
- Gaps left after new windows were fitted
- Mastic that has split away from the wall
- Sealant in the wrong colour for the frame
Window mastic in Wallington
If you can feel air around a shut window, the gap is often at the frame. Resealing that joint can make a room feel noticeably less draughty and quietens the whistle on windy days. If the draught is through the window seals instead, we will tell you. We work on patio & French doors, aluminium frames and uPVC windows, and common reasons people get in touch are hard, cracked sealant around windows and cold air getting in at the frame edge.
Homes around Wallington range from older properties to newer houses, and their windows range just as widely. Each frame material needs the right sealant against the right wall.
There’s a 12-month guarantee on every job, large or small.
- Place
- Wallington (PO16, PO14, PO17)
- Wider area
- Hampshire
- Cover
- 12 months on all our work
- Quotes
- A clear price before work begins
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Can I do it myself?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
How it works
We bring everything the job needs with us. Once we have agreed what’s being done, we protect the area and start. It normally takes a morning for a couple of windows and a door. A visit to Wallington is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- First, we confirm safe access to each frame.
- Old, cracked mastic is removed completely.
- The surfaces are cleaned and left dry.
- Backing rod fills deep voids and the sealant goes in on top.
- We tool the joint so water runs off, then clear up.
Before we arrive
- Keep children and pets away from the work area
- Let us know about parking restrictions
- Mention any tricky access
Get a quote
Asking for a quote is easy: let us know what needs doing and where, and roughly how big it is. Photos by email help us understand the job, and we will take it from there.
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For landlords and businesses
We work for landlords and agents as well as householders. Sealant work between tenants keeps a property looking cared for.
Whether it’s one flat or a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Places near Wallington
Also in Wallington
What the job involves on each surface
uPVC windows
The frame is cleaned with a product that will not harm the plastic, then the new bead is laid against the frame and the wall.
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.
Wallington questions
Does the coastal weather in Wallington affect outside sealant?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. The right product, a clean joint and the right depth all help it cope.
Do you work for landlords with property near Fareham station?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just call 0345 464 0079 or send us an email with the address and what needs doing, and we will give you a clear quote.
Are you insured?
Yes. Mr Mastic is fully insured.
Do you work in Wallington?
Yes, we do. Wallington is part of the area we cover.
Do you work on first-floor windows?
Yes, where it’s safe. Higher or awkward frames may need extra access, and we’ll confirm what’s needed.
Will you leave a mess?
We keep the work tidy. We protect what’s around the joints.
Do you remove the old sealant?
Yes. We cut out all the old sealant and clean the joint before resealing.
How much does window mastic cost in Wallington?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
Why act early in Wallington
Running fresh sealant over the old joint is tempting, but new sealant cannot bond to old, crumbling mastic. It peels before long, and water still gets in behind. Proper resealing starts with removing the old joint. In a smaller place like Wallington, wherever a wall is exposed, a failed outside joint is a real source of damp. Inside, a split seal lets water into floors and panels just as it would anywhere.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed. Call for a quick quote and we’ll explain what it covers.
Why choose Mr Mastic in Wallington
- Colour picked to suit the job
- We’re fully insured
- Sanitary silicone with an anti-fungal additive in wet areas
- White, clear, grey or coloured to suit, where the product allows
See our cost guide or our reviews.
When it isn’t the sealant
New sealant cannot fix everything, and we will tell you before we start. Sealant will not put right:
- Rotten timber, which needs a joiner first
- Penetrating damp from a failed cavity tray or render
- Condensation trapped between the panes
If in doubt, ring 0345 464 0079 or send us an email and we’ll say what we think before you book.
Joints and surfaces we work on
- Window sills
- Aluminium frames
- Patio & French doors
- uPVC windows
- Timber windows & doors
- Composite doors
Window mastic in Wallington: local notes
Wallington is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on the mastic around window and door frames, especially on the side facing the sea. Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
In the older streets around Parish Church of St Peter and St Paul, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. For site and facilities teams at buildings such as Wykeham House School, the mastic around its windows and doors needs looking after like any other building’s. Rented homes near Fareham station change hands often, and cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Wallington is about 1 mile east of Fareham, in Hampshire. We carry out window mastic for homes and businesses in Wallington and the surrounding area, as part of our work across Hampshire. 683 places in Hampshire are on our list.
We cover every part of the PO16, PO14 and PO17 postcode area for window mastic. Local streets include Bath Lane, Drift Road and Osborn Road, and we cover them all. Being close to the A32, Wallington is easy for our applicators to reach. Neighbouring places we cover for window mastic include Fareham Common (1 mile south-west), North Fareham (1 mile north), Fareham (1 mile west), Boarhunt (2 miles north-east) and Crockerhill (2 miles north). Larger places within reach include Gosport (4 miles south), Havant (8 miles east), Eastleigh (11 miles north-west), Horndean (8 miles north-east), Totton (15 miles west) and Chandler's Ford (13 miles north-west).
Near you in Wallington
Locally, jobs take us to homes and businesses close to Harrison Primary School, Cams Hill School and The Golden Lion Public House, among other places. Wallington’s nearest station is Fareham station, roughly 1 mile west of the centre. A little further out are Fareham Shopping Centre (less than half a mile west) and Knowle Hospital (2.3 miles north-west). For a walk, there’s Portsdown Hill and West of the River Alver.
How we quote for window mastic
Your quote is based on your job. We take into account:
- Which sealant suits the joint
- How easy the joints are to reach
- The number and length of the joints
- Working hours on commercial sites
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
What we need to know
Photos by email are helpful but not essential. Please mention:
- Where the job is, and your postcode
- If someone has resealed it before
- A few pictures by email, if you can
- The type of property
There’s no standard price list, as no two jobs are quite the same. Instead, we send you a clear quote for your job. To arrange one, ring 0345 464 0079 or email us.