
Mastic Sealing in Stonehills
Mastic sealing for building owners, managing agents and housing associations throughout Stonehills and nearby, carried out by CSCS-carded applicators. Fully insured and CHAS accredited.
- Patchy repairs in mismatched sealant
- The same joint failures repeated across a portfolio
- Open joints in brickwork or panels
Mastic sealing for Stonehills sites
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Block-wide mastic in Stonehills
Stonehills is within about 1 mile of the coast. For owners and agents with buildings near the sea, exposed elevations are where frame mastic fails first, so it’s worth inspecting those sides more often. Rainfall across the South East, Stonehills included, is lower than in many parts of the UK. External mastic still waits for dry faces and the right temperature, while the elevations that take the most sun tend to show hardened mastic first.
For agents with blocks near Hamble station, 3.3 miles north of Stonehills, a block-wide mastic programme deals with frames, balconies and entrances in one go. Older buildings near Stonehills, from historic houses such as Beaulieu Palace House, 4.6 miles west of Stonehills, to more modest stock, need compatible products when frames are resealed. Trustees of buildings like Church of All Saints can bring frame and external mastic into a planned maintenance list.
Stonehills is about 4 miles south-east of Hythe, in Hampshire. Looking for mastic sealing in Stonehills? We can help, as we do across Hampshire. Stonehills is one of 723 places we cover in Hampshire. Sites around Southampton have their own page, about 7 miles away.
Postcode districts covered here: SO45 for mastic joints. We cover commercial and managed buildings on Stonehills and Fawley Bypass and the roads nearby. Sites close to Stonehills are covered too, including Ashlett (1 mile north-east), Fawley (1 mile north-west), Sprat's Down (1 mile south), Calshot (1 mile south-east) and Blackfield (1 mile south-west). A short drive away, we cover Gosport (8 miles east), Eastleigh (10 miles north), Fareham (7 miles east), Totton (10 miles north-west), Chandler's Ford (11 miles north) and Hedge End (7 miles north).
Near you in Stonehills
Around Stonehills, our work takes us to commercial buildings near Falcon Hotel and The New Forest Academy, among other places. For rail, the closest station is Hamble station, about 3.3 miles north of the centre. A little further out are Calshot Castle (1.6 miles east) and Coldeast (4.1 miles north-east). Not far away are Mercury Marshes.
About our mastic sealing in Stonehills
Different joints need different sealants. Window perimeters and external joints often take a low-modulus neutral-cure silicone, while hybrid polymer sealants grip many materials and are often paintable, and colours are confirmed for whichever product is used. If you are dealing with no planned programme for sealant and movement joints with sealant missing, we can put it right. Searching for sealant specialists in Stonehills? We have been sealing commercial buildings since 2005, with CSCS-carded applicators.
For buildings around smaller places like Stonehills, we group work so one trip covers it. Photos of each elevation help us quote accurately.
The 12-month guarantee covers our workmanship: the preparation, the sealing and the tooling. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.

- Location
- Stonehills (SO45)
- Wider area
- Hampshire
- Guarantee
- 12 months on our workmanship
- Price
- Quoted before any work starts
- Call
- 01277 525 020
- Page updated
- 3 November 2026
Questions we are asked in Stonehills
Is Stonehills off your patch?
No. Small places get the same service as large ones. London and every South East county are within our area. Send photos and a list of what needs doing, and we will plan the job to need as few trips as possible.
Our building in Stonehills is near the coast: does that change the sealant?
It can. Wind-driven rain and, closer to the shore, salt air are harder on external joints. We choose the product for the exposure, prime where the manufacturer requires it and size the joint for its movement.
Do you guarantee the mastic work?
Our workmanship carries a 12-month guarantee, backed by public liability insurance.
How long does a job like this take?
It depends on the scope, but the work typically takes a day or two for a single block, longer for an estate programme. Larger or phased jobs take longer, and we will give you a timescale with the quote.
Do you work for managing agents and housing associations?
Yes. Managing agents, property factors in Scotland, housing associations and landlords with block or commercial portfolios are our main clients for this work, and we quote building by building or as a programme.
Can people stay in the building while you reseal?
Residents and tenants carry on as normal. If any flats or units need access, we’ll tell you in advance so it can be arranged.
Can you seal joints high up on a block?
Every block is different. How upper joints are reached is agreed before work is booked so there are no surprises.
Different surfaces, different methods
Planned maintenance
Mastic wears out like any building component; how fast comes down to movement, weather, UV and the product. Inspecting joints regularly keeps programmes on track.
External movement joints
Brickwork, blockwork and panel joints let a building move. Failed sealant in a movement joint lets water in.
How the quote is worked out
The price varies from site to site. Expect it to depend on:
- Joint width, depth and condition
- Any access equipment needed
- Travel to remote or island sites
- Phasing around occupants
The product called for affects the cost, and so does the preparation. Access, phasing and site requirements come into it too.
Sending details for a quote
However big the job, the same details help:
- The product your specification calls for
- When you need the work done
- Clear photographs of the problem areas
- Whether an asbestos survey exists
Every quote starts with the facts: what’s there, how much of it, how we reach it and what’s specified. Share whatever details you have and we will fill any gaps with a visit.
Why it’s worth doing now in Stonehills
Resealing ahead of leaks keeps it to a maintenance task. After water has got in, there may be damp, damaged plaster or decoration to put right too, and the complaints come with it. For buildings around smaller places like Stonehills, water damage can go unnoticed for longer, especially where a building isn’t used daily, which gives a failed joint time to do damage. Renewing joints in good time avoids the problem.
A quote for mastic joints depends on how many there are, their condition and the access, and any specification that applies. Call for a quote.
Why appoint us
- A fixed quote before work starts
- Colour agreed before work starts
- Public liability insurance in place
- CSCS-carded applicators
Take a look at our cost guide or our accreditations and insurance.
When something else is needed
Before quoting, we check that sealant is the right answer. It isn’t the answer for:
- Substrate edges that need repairing first
- Broken glass or failed sealed units
- Leaks through the frame itself rather than the perimeter
Not sure which it is? You can ring 01277 525 020 or email the details over and we’ll tell you honestly before you book.
What we seal
- Window and door perimeters on blocks
- External wall and movement joints
- Communal kitchens and washrooms
- Communal entrances and stairwells
- Shopfronts below residential blocks
- Balcony and threshold joints
Aftercare for building managers
Every sealant joint needs some looking after, and their life depends on movement, exposure, cleaning and use. We suggest:
- Keep a record of when each building was resealed
- Encourage occupiers to report problems at frames
- Have the asbestos survey to hand for older buildings
- Share your contractor requirements early
Protect entrance and corridor joints from knocks where possible. Damage at low level is the most common reason communal joints fail early.
Budgets are easier to plan when sealant is part of planned maintenance. A programme can start with the worst buildings so spending is spread.
Places near Stonehills
Also in Stonehills
Diagnose, treat, sign off
We bring the products specified for the job, along with primers and backing rod. Any old material is cut back to clean, sound faces, primer goes on where the manufacturer specifies it, and each bead is tooled to a neat concave finish. If others near Stonehills need work, visits can be combined. 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.
- The joints are prepared and resealed with the right product.
- Buildings are completed in turn.
What we need from you
- Send asbestos survey details if the building is pre-2000
- Send any specification or drawings in advance
- Let building users know which areas are affected
Request a quote
We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To start the process, speak to us on 01277 525 020 or use the quote form.