Hampshire · England
Blissford Window Mastic
Mastic around window and door frames, sills and patio doors for homes and businesses in Blissford and across Hampshire. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- White mastic on grey or black frames
- Gaps between the frame and the inside reveal
- Leaking joints at the ends of sills
When something else is needed
In fairness, some problems need a different trade:
- Rotten timber, which needs a joiner first
- Draughts through the window seals rather than the frame
- A failed sealed unit that has misted up
Not sure which it is? You can ring 0345 464 0079 or send us an email and we will tell you honestly.
Where we work in Blissford
- Window sills
- Aluminium frames
- Timber windows & doors
- uPVC windows
- Patio & French doors
- Composite doors
Window mastic in Blissford, done properly
Most frames have an outside joint and an inside one. The external joint is the weather seal; inside, the joint between frame and plaster stops draughts and tidies the reveal. Either or both can be done. Common call-outs are for rushed sealant from a window installation and black, perished sealant on frames, on patio & French doors, window sills and timber windows & doors.
Homes in small places like Blissford often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.
There’s a 12-month guarantee on every job.

- Place
- Blissford (SP6)
- Wider area
- Hampshire
- Guarantee
- A year, on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Looking after it afterwards
Once the sealant has cured, a few habits help it last:
- Keep solvents and bleach off the sealant
- Check the mastic once a year
- Use gentle cleaners on frames and sealant
- Paint up to the joint, not over it
Try not to touch the new joint while it cures, following the cure time we give you. Keep jet washers away from the frames.
A failed joint lets water into the wall a little at a time. You might not see it until plaster blows or a damp patch appears inside. Catching it early keeps the fix to a reseal.
Towns and villages near Blissford
Other services in Blissford
Do you need window mastic in Blissford?
Water runs down the glass onto the sill, so the sill ends and the joint below the frame are common leak points. Failed sealant there lets rain into the wall or behind the frame.
These are the problems we are asked about most:
- Mastic that has split away from the wall
- Leaking joints at the ends of sills
- Water coming in at the bottom corners of a door
- White mastic on grey or black frames
In the older streets around Church of the Holy Ascension, the joint between an old wall and a newer frame is usually the first place rain gets in.
Comparing quotes
- How long to leave it before use
- What insurance they hold
- What product goes in the joint
- Whether you can choose the colour
Different surfaces, different methods
Timber windows & doors
Wood swells when it’s wet and shrinks when it dries, so a flexible sealant is essential. The paint or stain needs to be sound where the sealant meets it.
Patio & French doors
Water at the foot of a door frame is not always the mastic: blocked drain slots, worn brush seals and threshold details can let water in too. We look for the cause first.
Common questions in Blissford
What guarantee comes with window mastic in Blissford?
Every job comes with our 12-month guarantee, wherever it is. We’re also fully insured and ARBOMaster approved.
Do you cover Blissford for window mastic?
Yes. Our work covers London and the South East, and Blissford is part of that. Just phone 0345 464 0079 or email us with a few details of the job.
Do you do commercial work?
Yes, regularly. Larger jobs can be planned room by room or area by area to suit the site.
Is the new sealant paintable?
Not if it’s silicone. Tell us your decorating plans and we will pick a sealant to suit.
Can you reach windows above the ground floor?
Generally, yes. Access is planned before we start, so mention the height and anything in the way.
Can tenants book the work?
We are happy to deal with the tenant, landlord or agent. Just make sure your landlord agrees.
Do I have to be there?
It depends on the job. For work indoors, someone needs to let us in, and for outside work we will agree access with you when we book.
Do you hold any approvals?
Yes. Mr Mastic is an ARBOMaster approved applicator, and we are fully insured.
DIY sealant or a professional job?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
A DIY attempt does not rule out a professional job. We cut it out and start again, so just mention it when you contact us.
How the visit works
On the day, there’s very little for you to do. Show us the job and we’ll take it from there. The work itself takes a morning for a couple of windows and a door from start to finish. In a small place like Blissford, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We check how each frame can be reached safely.
- All the failed sealant is cut away.
- The surfaces are cleaned and left dry.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
Getting ready for the visit
- Clear the area around the work
- Let us know about parking restrictions
- Tell us about any water getting in
How to get a quote
If you’re in Blissford and need window mastic, ring 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and you’ll get a clear quote before we start.
Advice
Frames and glazing around Blissford
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. With historic houses such as Breamore House (about 3.8 miles north) nearby, there’s older building stock in the area around Blissford as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
Schools such as Hyde Church of England Primary School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
Blissford is in Hampshire. Across the SP6 area, we cover window mastic for homes and businesses. Our area takes in 683 places across Hampshire, large and small. There’s also a page for Southampton, roughly 16 miles from Blissford.
Our applicators cover all of the SP6 postcode area for window mastic. That includes homes and businesses on Blissford Hill, Blissford Cross and Abbots Well Road and the roads around them. If you are just outside Blissford, we cover Frogham (1 mile south), Hyde (1 mile south-west), Hungerford (1 mile south-west), Stuckton (1 mile west) and Criddlestyle (1 mile north-west). Within a short drive, we also cover Totton (11 miles east), Lymington (14 miles south-east), Romsey (13 miles north-east), New Milton (12 miles south), Ringwood (5 miles south) and Barton on Sea (13 miles south).
Near you in Blissford
Typical jobs here are in homes near The Fighting Cocks pub and The Burgate School and Sixth Form and the streets around them. Nearby you will also find Fordingbridge Doll Museum (1.6 miles west) and Godshill Castle Hill (1.8 miles north). Open spaces near Blissford include Blashford Lakes and Linbrook Lake.
How we quote for window mastic
There’s no set price list, because jobs vary so much. What we look at:
- Any mould that needs treating
- The product the joint needs
- Any working-time requirements on site
- Whether old sealant or filler has to be cut out
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote and we’ll talk you through it.
What we need to know
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- If someone has resealed it before
- Whether it’s a home or a business
- Where the property is
- How we’d reach the joints
Need a quote? Please ring 0345 464 0079 or email us and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.
