West Sussex · England
Lurgashall Window Mastic
Problem with your window and door frames in Lurgashall? We remove the old material, prepare the joints and seal them properly.
- Cracked internal joints between frame and plaster
- Rushed sealant from a window installation
- Gaps where the sill meets the wall
Window mastic in Lurgashall, done properly
Frames and walls do not move together. Plastic and aluminium frames move with the temperature, while masonry stays fairly still. That is why the joint needs a flexible, low-modulus sealant rather than something rigid. If you have hard, cracked sealant around windows and gaps between the frame and the inside reveal, we can help, whatever the surface.
Mastic can only go onto a dry, clean joint, so window work in Lurgashall is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
We stand behind the work with a 12-month guarantee, so you are covered after we’ve gone.
- Place
- Lurgashall (GU28)
- Wider area
- West Sussex
- Guarantee
- A year, on every job
- Quote
- A clear price before we start
- Call
- 0345 464 0079
- Updated
- 26 October 2026

Should I try it myself first?
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.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
What sealant work can’t fix
New sealant can’t fix everything, and we will tell you before work begins. It will not solve:
- Draughts through the window seals rather than the frame
- Penetrating damp from a failed cavity tray or render
- Soft or decayed wood in the frame
If you are not sure, just call 0345 464 0079 or email us and we’ll give you a straight answer.
Where we work in Lurgashall
- uPVC windows
- Composite doors
- Window sills
- Timber windows & doors
- Aluminium frames
- Patio & French doors
Towns and villages near Lurgashall
What else we do in Lurgashall
Questions from Lurgashall
Can you do window mastic in Lurgashall?
Yes, Lurgashall is within the area we cover. We work across London and the South East. Just call 0345 464 0079 or send us an email with a few details of the job, and we will give you a clear price.
Do you cover smaller places like Lurgashall?
Yes. Lurgashall 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.
Will there be a smell?
That depends on the sealant. Some products have a noticeable smell, others very little, and any smell fades as they cure.
Will the old sealant be removed?
Yes. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.
Is the new sealant paintable?
It depends on the sealant. Silicone isn’t paintable, but some hybrid sealants are. Tell us if you are decorating and we will choose accordingly.
Does the work come with a guarantee?
Yes. Each job is covered for 12 months.
Can you do the inside joint as well?
Yes. Inside, the joint between frame and plaster is sealed neatly.
Can I add another job to the visit?
Of course. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
Do you need window mastic in Lurgashall?
On timber frames, paint and putty build up around the joint. Old mastic gets painted over and cracks under the paint, and the wood moves with damp as well as heat.
The most common problems we see are:
- Black, perished sealant on frames
- A bead that doesn’t match the frame
- Gaps left after new windows were fitted
- Rain getting in at the frame or under the sill
If you live in an older home near The Parish Church of St Lawrence, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Comparing quotes
- How the surfaces are prepared before sealing
- How long to leave it before use
- What happens if they find a problem under the old sealant
- Who does the work, and how experienced they are
What happens on the day
When we get to you, 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. In a small place like Lurgashall, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- First, we confirm safe access to each frame.
- All the failed sealant is cut away.
- Frame and wall are cleaned and must be dry before sealing, 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
- Mention if the joints have been sealed before
- Let us know if you’ve seen damp or leaks
- Move anything stored near the joints
Getting a quote
For a quick quote, get us on the phone, or email us if that is easier. Describe what needs sealing and we’ll explain what’s involved before giving you a price.
Advice
Keeping the joints in good condition
Good habits help new joints last longer. A few tips:
- Don’t use solvent cleaners on the joint
- Keep timber frames painted
- Do not paint over the silicone
- Avoid blasting the frames with a pressure washer
Silicone can’t usually be painted, so mention any painting plans before we start. We can use a paintable sealant where that matters.
Look out for the warning signs: split or missing mastic, gaps, damp patches inside or black mould on the reveal. Any of these is worth a call.
What window mastic looks like in Lurgashall
Historic houses like Petworth House (about 3.9 miles south-east) are a reminder that the area around Lurgashall has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window. Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For landlords with property near Haslemere station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Lurgashall is about 12 miles east of Petersfield, in West Sussex. Jobs in Lurgashall get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. Across West Sussex, we cover 371 places, Lurgashall among them. There’s also a page for Crawley, roughly 21 miles from Lurgashall.
Jobs for window mastic in GU28 works the same way as everywhere else we cover. Neighbouring places we cover for window mastic include Lickfold (1 mile south-west), Northchapel (2 miles north-east), Ebernoe (2 miles east), Lodsworth (2 miles south) and Ansteadbrook (3 miles north). Further out, we also cover Horsham (15 miles east), Chichester (14 miles south), Storrington (12 miles south-east), Billingshurst (9 miles east), Portfield (14 miles south) and Yapton (15 miles south).
Near you in Lurgashall
For rail, the closest station is Haslemere station, about 4.5 miles north-west. Well-known places in the area include Midhurst Community Hospital (4.1 miles south-west) and Lodsworth Castle (3.6 miles south). Open spaces near Lurgashall include Blackdown and Shillinglee Lake.
Why it’s worth doing now in Lurgashall
A cracked joint around a frame lets rain into the wall. Left long enough, it can stain inside walls, spoil plaster and rot wooden frames. A reseal is a much smaller job. Around Lurgashall, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
A failed joint rarely gets cheaper to fix by waiting. If you’re unsure, phone 0345 464 0079 or drop us an email and we’ll give you an honest view and a quote.
Why choose Mr Mastic in Lurgashall
- Domestic, commercial and hotel work
- Trusted Arbo and Everbuild sealants
- Any old sealant cut out fully, not covered over
- Over 20 years’ experience
See what affects the cost or our reviews.
How the job changes by surface
uPVC windows
uPVC expands and contracts noticeably with temperature, so the joint needs a low-modulus sealant that stays flexible. White is the usual colour, with brown, anthracite grey and black for coloured frames.
Timber windows & doors
On period timber windows, traditional sand mastic is sometimes the better choice. We’ll tell you which suits your home.
