Hampshire · England
Window Mastic in North Boarhunt
Specialist window mastic for North Boarhunt: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Hard, cracked sealant around windows
- A bead that doesn’t match the frame
- Gaps between the frame and the inside reveal
Window mastic in North Boarhunt
Whether it’s one leaking patio door or every frame on the house, the work is priced before anything is done. Just phone 0345 464 0079 or email us and tell us how many frames there are and how they’re reached. If you’re dealing with old mastic that has gone black or come away and white mastic on grey or black frames, we can help.
Somewhere as small as North Boarhunt, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.
We stand behind the work with a one-year guarantee, so you are covered after we have gone.

- Where
- North Boarhunt (PO17)
- Wider area
- Hampshire
- Cover
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Should I try it myself first?
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
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’s what we find.
Window sills
Masonry sills can have joints where water gets in, including the one between the sill and the frame above. We seal those with a sealant suited to masonry.
The process
We bring everything the job needs with us, so you don’t need to buy or prepare anything. Once we have agreed what’s being done, we protect the area and start. Most jobs take most of a day for a typical house, less for a few frames. In a small place like North Boarhunt, access is generally 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.
- Deep gaps get closed-cell backing rod to set the depth.
- 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
- Try not to wet indoor joints just before the visit
- Mention if the joints have been sealed before
- For business premises, tell us about site rules or sign-in
Get a quote
We quote each job on its own. Simply ring 0345 464 0079 or email us and describe the job, and pictures are welcome.
Related advice
For landlords and businesses
For anyone letting property in or around North Boarhunt, several properties can go on one quote. Just tell us the addresses and what each one needs.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.
Common problems we fix in North Boarhunt
Some failures date back to when the windows were fitted. Sealant run over dust, wet brick or loose mortar didn’t grip properly, and it lets go sooner than it should.
It’s worth asking for a quote if you see:
- A bead that doesn’t match the frame
- Draughty joints inside around the window
- Mastic that is falling out in pieces
- Cracked or shrunken mastic around the frame
Homes close to Church of the Holy Trinity include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Before booking anyone
- Is VAT in the price?
- How hidden problems are handled
- What the cure time is
- Which colour the sealant will be
Why deal with it now?
Not every sealant suits a window. Interior caulk and bathroom silicone aren’t made for exterior frame joints. An exterior, low-modulus sealant stays flexible in sun and frost. Older cottages and farmhouses around North Boarhunt can have timber 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, because water and mould keep working on it. If you’re unsure, ring 0345 464 0079 or send us an email for an honest opinion and a quote.
Why us?
- Old sealant always removed completely
- Homes, businesses and hotels
- You choose the colour before work begins
- Neat joints and a tidy finish
Questions from North Boarhunt
Do you work for landlords with property near Portchester station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. Just ring 0345 464 0079 or email us with the address and what needs doing, and we’ll send you a clear quote.
Is North Boarhunt in your area for window mastic?
Yes. Our work covers London and the South East, and North Boarhunt is part of that. You can phone 0345 464 0079 or send us an email and tell us what needs doing, and we’ll give you a clear price.
What does window mastic cost?
Every job is different, so each one gets its own quote. For a quick quote, call 0345 464 0079 or email us and let us know what needs doing and where.
Can resealing stop a draught around my window?
In many cases. Air often gets in between the frame and the wall, and resealing inside and out closes it.
Are you insured?
Yes. Mr Mastic is fully insured, with over 20 years’ experience in sealant work.
Is it messy?
Tidy work is part of the job. Nearby surfaces are protected, and we clear up when we are done.
How long should I leave it?
Cure times vary by product. Before we leave, we will tell you the cure time.
Can you work on commercial sites?
Yes. Hotels, offices and other businesses use us.
Also near North Boarhunt
More services for North Boarhunt
Window mastic in North Boarhunt: local notes
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 Portchester station, renewing tired window mastic between tenants heads off draught and damp complaints. For site and facilities teams at buildings such as Newtown Soberton Infant School, its window and door frames need their mastic kept sound, just like a home’s.
North Boarhunt is about 4 miles north-east of Fareham, in Hampshire. Our applicators cover window mastic for homes and businesses in North Boarhunt and the surrounding area. Our Hampshire coverage runs to 683 places, and North Boarhunt is one of them. You can also see our page for Portsmouth, about 7 miles away.
Every address in PO17 is within our area for window mastic, from the main roads to the quietest streets. If you need window mastic at a property on Trampers Lane and Bere Farm Lane or anywhere close by, we can help. If you are just outside North Boarhunt, we cover Hundred Acres (1 mile north-west), Wickham Common (1 mile west), Boarhunt (2 miles south), Crockerhill (2 miles south-west) and Southwick (2 miles south-east). Within a short drive, we also cover Winchester (14 miles north-west), Gosport (6 miles south), Havant (7 miles east), Eastleigh (10 miles north-west), Fareham (4 miles south-west) and Horndean (6 miles east).
Around North Boarhunt
North Boarhunt’s nearest station is Portchester station, roughly 3.3 miles south. A little further out are Fareham Shopping Centre (3.2 miles south-west) and Portchester Castle (4.2 miles south). Not far away are Portsdown Hill and St Clair's Meadow.
What affects the cost of window mastic
We don’t publish a price list, because no two jobs are the same. What we look at:
- The type of sealant required
- How many rooms, windows or areas are involved
- Whether the work is at height
- When we can work, for business premises
Combining jobs into one visit is usually more efficient than separate visits, so tell us about everything that needs sealing. You will get one clear quote for the whole job.
Asking for a quote
When you contact us, these details help:
- If it’s domestic, commercial or a hotel
- Photos by email, if that is easy
- Any access issues, like height or stairs
- Whether it has been sealed before
Call for a quick quote, or email us if that is easier. Tell us about the joints that need doing and we will talk you through the work before giving you a price.
