Hampshire · England
Window & door mastic in North Street, Hampshire
Our applicators work in North Street on mastic around window and door frames, sills and patio doors. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Sealant in the wrong colour for the frame
- Hard, cracked sealant around windows
- Leaking joints at the ends of sills
Window mastic for homes and businesses in North Street
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. Where the air is getting in through the window itself, we’ll say so. Common call-outs are for a bead that doesn’t match the frame and leaking joints at the ends of sills, across composite doors, window sills and timber windows & doors.
Around North Street, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
Our work is backed for twelve months, and the guarantee is the same wherever you are.
- Location
- North Street (SO24)
- Region
- Hampshire
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
North Street homes and the weather
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. Historic houses like Bentworth Hall (about 3.9 miles north) are a reminder that the area around North Street has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
In the older streets around Church of St Peter, the joint between an old wall and a newer frame is usually the first place rain gets in.
North Street is about 6 miles south-west of Alton, in Hampshire. Anywhere in SO24, our applicators can take on window mastic. We cover 683 towns and villages across Hampshire, large and small. We also work in Southampton, about 18 miles from North Street.
Here we cover the SO24 postcode area for window mastic. If you’re just outside North Street, we cover Gilbert Street (1 mile south-east), Ropley (1 mile south), Ropley Dean (1 mile south-west), Kitwood (1 mile east) and Charlwood (2 miles south-east). Larger places within reach include Basingstoke (12 miles north), Winchester (10 miles west), Eastleigh (14 miles south-west), Horndean (13 miles south), Chandler's Ford (15 miles south-west) and Alton (6 miles north-east).
Around North Street
Well-known places in the area include Barton Castle (3.3 miles north-west) and Alton Community Hospital (5.1 miles north-east). The countryside around North Street includes Shutts Copse and Red Hill.
North Street questions
Do you cover North Street for window mastic?
Yes, North Street is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or send us an email and tell us what needs doing.
Is there a guarantee on window mastic in North Street?
All our work, in North Street and everywhere else, comes with a 12-month guarantee. We’re fully insured, and an ARBOMaster approved applicator.
Can you do the inside joint as well?
Yes. Plenty of draughts come through the inside joint as well as the outside, so sealing both is often worthwhile.
How many windows can you do in a day?
That depends on the number of frames, how they’re reached and the state of the old mastic. We’ll tell you how long your job needs when we quote.
Do you have insurance?
Yes. We’re fully insured.
Is it messy?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
Do you work on first-floor windows?
Yes, where they can be reached safely. Let us know about access when you ask for a quote so we can plan the job.
Can you match the sealant to my frames?
Yes. We can use white, brown, anthracite grey, black or clear.
What we are called out for in North Street
Older frames were often sealed with products that set hard. Once it’s rigid, every bit of frame movement pulls at it, leaving a hairline gap down one side.
The most common problems we see are:
- Gaps where the sill meets the wall
- Black, perished sealant on frames
- White mastic on grey or black frames
- Whistling draughts around closed windows
If you look after a building such as Ropley Church of England Primary School, the mastic around its windows and doors needs looking after like any other building’s.
What to look for in a quote
- How the colour is chosen
- Are they insured?
- How the joint is cleaned and prepared
- Whether the sealant suits the joint
Aftercare tips
Aftercare is simple:
- Repaint timber before it’s bare
- Air rooms to keep condensation down around windows
- Keep drainage slots and sill grooves clear
- Wash the frames with mild soapy water
Silicone can’t generally be painted, so if you are planning to paint the frames or walls, tell us beforehand. We can use a paintable sealant where that matters.
A small gap around a frame only grows. As the old mastic shrinks further, more air gets through, and heat escapes around the frame. Resealing closes it.
What sealant work cannot fix
A few problems are outside what sealant work can do:
- Damp problems in the wall away from the window
- Soft or decayed wood in the frame
- Faulty window hardware
Not sure which it is? You can call 0345 464 0079 or send us an email and we’ll tell you honestly before booking.
What we seal
- Composite doors
- uPVC windows
- Aluminium frames
- Patio & French doors
- Window sills
- Timber windows & doors
What we do, step by step
A visit follows a simple pattern: we look at the joints together, protect the area around them, carry out the job and tidy away. It normally takes a few hours for a few frames, or a day or more for a whole house. Somewhere like North Street needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- We check each frame and agree which ones need doing.
- The old mastic is cut out and the surfaces cleaned back.
- Deep gaps are filled with backing rod to set the depth.
- A flexible, weatherproof sealant is applied in a colour to suit the frame.
- Finally we tidy up and check each joint.
Getting ready for the visit
- Tell us about any previous sealing or DIY attempts
- Let us know about parking restrictions
- Tell us about access, such as stairs, a lift or high-level joints
Ask for a quote
There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, call 0345 464 0079 or drop us an email.
Related advice
For landlords and businesses
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
Why it’s worth doing now in North Street
If you are painting or rendering, reseal at the same time. A clean new bead makes new paint or render look finished. In a small place like North Street, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all play a part.
Why book with us
- 20+ years of sealant experience
- Sanitary silicone with an anti-fungal additive in wet areas
- We’re fully insured
- An ARBOMaster approved applicator
Take a look at how sealant jobs are priced or customer reviews.
Towns and villages near North Street
More services for North Street
What affects the quote in North Street
You will get a clear quote before any work starts. It takes into account:
- Whether there’s mould to deal with
- Access and height
- Any working-time requirements on site
- The number and length of the joints
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please ring 0345 464 0079 or drop us an email.
What we need to know
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- Pictures of the joints, sent by email
- Access, such as stairs, a lift or height
- The type of property
- The address or postcode of the job
Every job is quoted individually, so the first step is telling us about yours. Just phone 0345 464 0079 or email us with the details, and photos are welcome.