Hampshire · England
Window & door mastic in Whitehill, Hampshire
Mastic around window and door frames, sills and patio doors for homes and businesses in Whitehill and across Hampshire. Fully insured, ARBOMaster approved and guaranteed for a year.
- Cracked sealant at the sill ends
- Draughty joints inside around the window
- Whistling draughts around closed windows
The process
Once we are on site, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. Most jobs then take most of a day for a typical house, less for a few frames. For a job in Whitehill, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- We check how each frame can be reached safely.
- All the failed sealant is cut away.
- The surfaces are cleaned and left dry, and primed where the sealant calls for it.
- 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
- On commercial sites, let us know about site rules
- Where the joints are inside, avoid wetting them before we arrive
- Clear items away from the joints we are working on
Getting a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. When it suits you, call 0345 464 0079 or email us.
Advice
About our window mastic in Whitehill
Colour matters on a frame. White, brown, anthracite grey, black and clear sealants are all available, so the bead blends with the window rather than framing it. If you have gaps where the sill meets the wall and untidy mastic left by window fitters, we can put it right, whatever the surface.
Many houses in smaller places like Whitehill have conservatories, garden rooms or patio doors. Their glazing joints and frame seals are as much a part of the job as the windows.
All of our work is guaranteed for twelve months.
- Where
- Whitehill (GU35)
- Region
- Hampshire
- Cover
- One year on every job
- Price
- A clear price before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Different surfaces, different methods
uPVC windows
uPVC expands and contracts noticeably with temperature, so we use a flexible, low-modulus sealant. White is the usual colour, with brown, anthracite grey and black for coloured frames.
Timber windows & doors
Where timber has rotted at the joint, it needs repairing first. If we find rot, we’ll tell you before going ahead, as a joiner will need to deal with it.
Nearby places to Whitehill
Other services in Whitehill
For landlords and businesses
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.
Signs you need window mastic in Whitehill
Older frames were often sealed with products that set hard. Once it has hardened, the frame’s movement tears it from the wall, and a gap opens along one edge.
People usually contact us after spotting something like this:
- White mastic on grey or black frames
- Leaking joints at the ends of sills
- Gaps between the frame and the inside reveal
- Water coming in at the bottom corners of a door
Rented homes near Liphook station change hands often, and sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
What to look for in a quote
- How hidden problems are handled
- How much experience the applicator has
- The length of the guarantee
- Which sealant they’ll use, and why
Should I try it myself first?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
The biggest DIY mistake is sealing over old sealant. 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.
What we can’t put right
We’ll always be straight with you, so here’s what sealant can’t fix:
- Rotten timber, which needs a joiner first
- Draughts through the window seals rather than the frame
- Faulty window hardware
If you’re not sure, just ring 0345 464 0079 or send us an email and we will give you a straight answer before you book.
Joints and surfaces we work on
- Timber windows & doors
- Composite doors
- Patio & French doors
- Aluminium frames
- uPVC windows
- Window sills
Frames and glazing around Whitehill
Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For site and facilities teams at buildings such as Woodlea Primary School, larger buildings have plenty of frames, and the mastic around each one ages. In the older streets around St Mark's Sacred Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Whitehill is about 6 miles south-east of Alton, in Hampshire. If you need window mastic in Whitehill, it’s easy to get a quote: please phone 0345 464 0079 or drop us an email. We are based in Crawley and cover Hampshire, Whitehill included. Whitehill is one of 683 towns and villages in Hampshire where we work. Our Portsmouth page covers work nearby, about 22 miles away.
Here we cover the GU35 postcode area for window mastic. We cover properties on Stubbington Avenue, Petersfield Road and Dudley Close. We also cover the places around Whitehill: Hollywater (1 mile east), Bordon (1 mile north), Deadwater (1 mile north-east), Pinewood Village (1 mile north) and Standford (1 mile east). Larger places within reach include Basingstoke (15 miles north-west), Farnborough (14 miles north), Fleet (12 miles north), Horndean (15 miles south-west), Aldershot (11 miles north-east) and Alton (6 miles north-west).
Near you in Whitehill
In Whitehill, that means homes and buildings near St Matthew's Church and Mill Chase Academy and the streets around them. The nearest railway station is Liphook station, about 3.7 miles south-east. Well-known places in the area include The Romany Museum (3.2 miles west) and Chase Community Hospital (within half a mile north-east). Not far away are Selborne Hill and Deadwater Valley.
Your questions about window mastic in Whitehill
Do you cover Whitehill for window mastic?
Yes, Whitehill is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job.
Will you come out to Whitehill?
Yes. Whitehill is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can you seal over the old sealant?
No. Fresh sealant does not stick to old sealant, and anything trapped underneath, including mould and water, stays there. We remove it all first.
How long before the joint can be used?
Most sealants are touch-dry well before they’re fully cured. We will tell you how long to leave the joint.
Do you work on first-floor windows?
Yes, where they can be reached safely. Tell us about access when you get in touch and we’ll plan for it.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint before resealing.
Where do you work from?
We work from Crawley. We cover Whitehill and the rest of Hampshire.
How long does it take to reseal the windows on a house?
The work takes most of a day for a typical house, less for a few frames. Access and how stubborn the old mastic is affect the time most.
Why it’s worth doing now in Whitehill
The work is quick compared with the damage it prevents: it takes a morning for a couple of windows and a door. Leave it until water is coming in and you may need plastering and decorating as well. In a smaller place like Whitehill, wherever a wall is exposed, a failed outside joint is a real source of damp. Indoors, a failed seal lets water into floors and panels as it would anywhere.
The cost depends on the amount of work, how much old material has to come out and how easy the joints are to reach. We give a clear quote before work begins.
What you get with us
- Experience in homes, commercial sites and hotels
- More than 20 years in sealant work
- Trusted Arbo and Everbuild sealants
- Every job guaranteed for a year