
Mastic Sealing in New Copse
Mastic sealing for New Copse, from a contractor working since 2005. Fully insured, with a 12-month guarantee.
- Brittle perimeter mastic across a building
- Old repairs sealed over failed mastic
- Movement joints with sealant missing
Mastic sealing across New Copse
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
About our mastic sealing in New Copse
Older blocks and commercial buildings can have mastic that contains asbestos. Before we disturb it, we ask to see the asbestos register or survey and if it’s suspected, work stops until it’s tested. Removing asbestos-containing material isn’t something we do. If you have draughts at frames across a block and leaks at window and door perimeters, we can help. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, in New Copse it comes down to the same thing: the right product in a properly prepared joint.
For owners with a single building near New Copse, we plan to finish in one visit where possible. Photos of each elevation help us quote accurately.
The 12-month guarantee is for workmanship rather than wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we’re clear about what is covered before work starts.

- Place
- New Copse (GU34)
- Wider area
- Hampshire
- Cover
- 12 months on every job
- Price
- A fixed quote before we start
- Call
- 01277 525 020
- Updated
- 3 November 2026
What happens if it’s left?
A bead run over old mastic can look like a repair. It won’t grip the old sealant and soon comes away. Cutting out and resealing properly does it once. Converted and older buildings near places like New Copse tend to move, and aged sealant cracks. The right product, sized to the joint, copes much better.
Whether it’s a single area or a whole estate, the same things set the price: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote, and you will have a fixed figure to work with.
Why appoint us
- CHAS accredited
- Constructionline member for supplier checks
- A fixed quote before work starts
- Over 20 years of commercial sealing
See our cost guide and how we’re accredited.
From enquiry to sign-off
In a busy building, we agree a sequence with your contact so the disruption stays in one area at once. Each area is protected, prepared and sealed before the next one starts. Smaller jobs around New Copse can be grouped with others nearby, which keeps travel down. You will have a fixed quote before work starts.
- We check the asbestos register for older buildings and look at the joints.
- A fixed quote covers the joints, products and order of work.
- Failed mastic is removed completely.
- Joint faces are cleaned, backed and resealed.
- We finish each building before moving to the next.
Before we start on site
- Tell us your opening times and when work is allowed
- Make sure the joints can be reached
- Warn occupants and staff about the work
Quotes
The quickest route to a quote is a few photos and the site postcode. Upload them with the quote form, or phone 01277 525 020 or email the details over to discuss it first.
Advice
Cost factors for mastic joints
Before we quote, we look at:
- Working within restricted access windows
- How accessible the joints are
- Joint width, depth and condition
- How much there is to seal
What a job costs comes down to how many linear metres there are, how much old material needs removing and how the joints are reached. Call for a quote when you’re ready.
What to include in your enquiry
To price the job accurately, we need to understand the site. Useful things to include:
- Specification clauses that apply
- Whether the building will be occupied during the work
- Where the site is, with the postcode
- When you need the work done
Let us know the site, the scope and your timescale, and we’ll put a fixed quote together. To get it moving, call the office on 01277 525 020 or email a schedule or drawings.
What sealant work can’t fix
Being straight saves everyone time. New sealant won’t cure:
- Materials that need asbestos testing before work
- Glazing that needs replacing
- Masonry that has broken away beside the joint
If you’re not sure, just call the office on 01277 525 020 or send details through our quote form and we’ll give you a straight answer.
What we seal
- Window and door perimeters on blocks
- Balcony and threshold joints
- Communal entrances and stairwells
- External wall and movement joints
- Communal kitchens and washrooms
- Shopfronts below residential blocks
Block-wide mastic in New Copse
New Copse lies roughly 49 miles out from central London. Managed blocks of flats are a big part of commuter-belt property; their frame mastic often ages block-wide. New Copse is in the South East, one of the UK’s drier regions. Even so, frame mastic only goes on in dry, workable conditions, and south- and west-facing elevations, which take the most sun and rain, often age first.
For owners of several units at places like Lower Soldridge Business Park, 1.8 miles south of New Copse, one programme can deal with frame and external mastic across the lot. Trustees of buildings like Church of St Andrew can bring frame and external mastic into a planned maintenance list. If your remit includes a building such as Medstead Church of England Primary School, frame and door mastic can be programmed for the holidays.
New Copse is about 4 miles west of Alton, in Hampshire. New Copse sits inside our coverage, with the same fixed quotes and 12-month guarantee as everywhere else. Our Hampshire coverage takes in 723 places, large and small. For work in that direction, see our Southampton page (21 miles or so).
Work on mastic joints is covered throughout GU34. Close to New Copse, our area also takes in South Town (1 mile south), Holt End (1 mile north), Hattingley (1 mile south-west), Wivelrod (1 mile east) and Bentworth (1 mile north-east). Bigger towns within reach include Basingstoke (9 miles north), Winchester (12 miles south-west), Fleet (14 miles north-east), Aldershot (15 miles north-east), Alton (4 miles east) and Petersfield (11 miles south-east).
What’s near New Copse
For rail, the closest station is Alton station, about 4.3 miles east. A little further out are Alton Community Hospital (3.2 miles east) and Gliding Heritage Centre (3.7 miles north-east). The countryside around New Copse includes King's Hill.
Maintenance after handover
For the best life from the joints:
- Keep a record of when each building was resealed
- Protect low-level joints in entrances
- Share your contractor requirements early
- Check the asbestos register before any old mastic is disturbed
If a joint we sealed fails within 12 months, tell us and we’ll look at it. After that, regular inspection keeps the programme on track.
Mastic fails gradually, then all at once in a wet spell. Acting at the first signs keeps it a straightforward reseal and the complaints that come with it.
General trades versus a specialist
General builders and handymen seal joints, but it isn’t their main trade. A specialist prepares properly, controls joint depth and picks a product with the right movement class.
Using site staff can make sense for a small touch-up, but larger jobs are different: a specialist brings efficiency, a consistent finish and a 12-month guarantee.
Your questions answered
Is a smaller place like New Copse outside your area?
No. Small places get the same service as large ones. Our area covers London and the South East counties. We plan jobs in smaller places so return trips are kept to a minimum.
Do you work for managing agents with blocks near Alton station?
Yes, we work for agents, landlords and housing associations with blocks of every size. Send the address, photos of the elevations and your access arrangements, and we will give a fixed quote.
How do you handle work on occupied blocks?
We plan around people living or working in the building. Dates and areas are agreed with you so residents or tenants can be told, and entrances stay in use.
Is mastic sealing guaranteed?
A 12-month guarantee covers our work. It covers our workmanship, not later building movement, damage or frame failures.
How long does a typical visit take?
We plan the time on site around your programme and access. You will have an expected duration with the quote.
Do you do block-wide mastic programmes?
Yes. We survey and price each building, then work through them in order, and the programme can start with the worst.
How do you reach windows on upper floors?
Every block is different. How upper joints are reached is agreed before work is booked so there are no surprises.