Hampshire · England
Window Mastic in Gilbert Street
Mastic around window and door frames, sills and patio doors for homeowners, landlords and businesses in Gilbert Street. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Black, perished sealant on frames
- Gaps left after new windows were fitted
- Hard, cracked sealant around windows
Can I do it myself?
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
Window mastic in Gilbert Street, done properly
Whether it’s one leaking patio door or every frame on the house, the work is priced before anything is done. To get one, ring 0345 464 0079 or send us an email with the number of frames and any access details for window mastic in Gilbert Street. If you have cold air getting in at the frame edge and gaps between the frame and the inside reveal, we can help, whatever the surface.
Somewhere as small as Gilbert Street, 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.
There’s a 12-month guarantee on every job.
- Location
- Gilbert Street (SO24)
- Region
- Hampshire
- Cover
- One year on every job
- Quotes
- A clear price before we start
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Also near Gilbert Street
Also in Gilbert Street
Why act early in Gilbert Street
Draughts and leaks do not always mean new windows. If the frames and glass are in good order, resealing the joints is often all that’s needed. If we find failed glass units or worn seals, we’ll tell you. Older cottages and farmhouses around Gilbert Street can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Leaving a failed joint usually makes the job bigger, not smaller. If you are not sure whether it needs doing, call 0345 464 0079 or send us an email and we will give you an honest view and a quote.
Why book with us
- Arbo and Everbuild products
- Tidy, careful work
- Full insurance on every job
- White, clear, grey or another colour, product permitting
Take a look at what affects the cost or our reviews.
Questions from Gilbert Street
Do you cover smaller places like Gilbert Street?
Yes, Gilbert Street is covered. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Can you do window mastic in Gilbert Street?
Yes. We work across London and the South East, and Gilbert Street is part of that. You can phone 0345 464 0079 or email us and let us know what needs doing, and we’ll give you a clear price.
Will new mastic stop draughts?
It will if the frame joint is the problem. We find where the air is coming from before we reseal.
What should I tell you?
The location, the problem and the rough size of the job. If you can, email a few photos.
Can new window sealant be painted?
It depends on the sealant. Some hybrid sealants can be painted; silicone cannot. Mention any painting plans before we start.
Will you leave a mess?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
Will the old sealant be removed?
Yes, always, and completely. New sealant will not bond properly to old, so the joint is cleaned back first.
Is it worth trying it myself?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.
What affects the quote in Gilbert Street
Your quote is based on your job. We look at:
- Working hours on commercial sites
- Whether the work is at height
- The size of the job
- The number of rooms or windows
The cost reflects the work involved, not a rough estimate. That’s why we ask a few questions first.
Helping us quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- Where the property is
- Whether it has been sealed before
- The problem you’ve noticed
- Roughly how big the job is
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. When it suits you, phone 0345 464 0079 or email us.
Looking after it afterwards
Simple care keeps the joints in good condition. Our advice:
- Walk round the house once a year and look at the joints
- Use gentle cleaners on frames and sealant
- Keep paint off silicone joints
- Keep jet washers away from the mastic
A yearly look round the frames is enough. Small splits are simple to catch before they leak, and if anything looks wrong, just call 0345 464 0079 or drop us an email.
Draughts get worse, not better. As old mastic keeps shrinking, the gap widens, and heat escapes around the frame. A new joint closes it up.
What we are called out for in Gilbert Street
Joints that are too thin or too deep fail early. A thin smear across a wide gap has nothing to it, while a joint packed solid cannot stretch. That is what backing rod is for.
Any of these means the joints need attention:
- Mastic that has split away from the wall
- Water coming in at the bottom corners of a door
- Cracked sealant at the sill ends
- Rushed sealant from a window installation
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.
Comparing quotes
- Is the old sealant removed completely?
- What preparation is included
- How much experience the applicator has
- How long the guarantee is
Frames and glazing around Gilbert Street
With historic houses such as Bentworth Hall (about 4.2 miles north) nearby, there’s older building stock in the area around Gilbert Street as well as newer homes. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic. Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Homes close to Church of St Peter include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Gilbert Street is about 6 miles south-west of Alton, in Hampshire. Every kind of property in Gilbert Street can book us for window mastic. Every job comes with our 12-month guarantee. Across Hampshire, we cover 683 places, and Gilbert Street is one of them. For nearby work, see our Southampton page.
We cover every part of the SO24 postcode area for window mastic. If you need window mastic at a property on Andrew's Lane, Gilbert Street and Swelling Hill or a nearby road, our applicators can take on the job. Other places close to Gilbert Street include Ropley (1 mile south-west), Kitwood (1 mile north-east), North Street (1 mile north-west), Charlwood (1 mile south-east) and Ropley Dean (1 mile west). Larger places within reach include Basingstoke (12 miles north), Winchester (11 miles west), Eastleigh (15 miles south-west), Horndean (13 miles south), Alton (6 miles north-east) and Waterlooville (14 miles south).
Local landmarks in Gilbert Street
Nearby you will also find Barton Castle (4.1 miles north-west) and Alton Community Hospital (4.8 miles north-east). Not far away are Shutts Copse and Red Hill.
The process
When we get to you, we check the joints match what you told us. If anything is different, we explain it before carrying on. Most jobs then take a few hours for a handful of frames, longer for a whole house. For a village or hamlet like Gilbert Street, the journey is planned in advance: 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.
- First we look at every frame and agree the list.
- Next the failed sealant is cut away and the joint cleaned.
- We fit backing rod in deep gaps so the sealant is the right depth.
- A flexible, weatherproof sealant is applied in a colour to suit the frame.
- We clear up and check every joint is fully closed.
Preparing for the visit
- Plan for the work area to be out of bounds to pets and children
- Try not to wet indoor joints just before the visit
- On commercial sites, let us know about site rules
How to get a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and email photos if that’s easy.
Related advice
Work for landlords, hotels and businesses
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
Letting agents and landlords in Gilbert Street can book us as well as householders. Sealant work between tenants is a simple way to keep a property in good order.