Mastic Sealing in The Frenches
Commercial sealant work in The Frenches for contractors, FMs and building owners: mastic sealing for building owners, managing agents and housing associations, with a fixed quote first.
- Occupiers reporting cold air round windows
- Failed external movement joints
- A mix of products and colours from past repairs
Mastic sealing for The Frenches sites
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Building owners, agents and FMs in The Frenches
Agents, factors and owners’ representatives all follow the same route: send the details, accept a fixed quote, and we carry out and guarantee the work. We can agree access arrangements and keyholder contacts beforehand.
Planned maintenance programmes are welcome: resealing failed joints building by building, on a schedule that suits your budget. Sites in The Frenches can sit alongside others in a wider programme across Hampshire.
Mastic sealing in The Frenches, done properly
Different joints need different sealants. Low-modulus neutral-cure silicone suits many window perimeters and external movement joints, while hybrid polymer sealants grip many materials and are often paintable. We will confirm the colours available for the specified product. We work on window and door perimeters on blocks, communal kitchens and washrooms and shopfronts below residential blocks, and the failures we’re asked to look at most are open joints in brickwork or panels and window mastic that has split and shrunk. Most enquiries from The Frenches start with one failed joint and grow into a wider look at the building: we look at the rest while we are there and tell you what we find.
For buildings around smaller places like The Frenches, we group work so one trip covers it. Send photos of the frames and joints and we’ll give a fixed quote.
We stand behind the joints we seal with a 12-month guarantee. It covers how we prepared and applied the sealant.
- Place
- The Frenches (SO51)
- Wider area
- Hampshire
- Guarantee
- 12 months on every job
- Price
- Fixed quote, scope in writing
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
What we can’t put right
Part of a good diagnosis is knowing where sealant stops. You’ll hear from us if the cause turns out to be one of these:
- Misted or failed double-glazed units
- Cracked or crumbling render, brick or stone at the joint edges (we will tell you if so)
- Roof leaks, gutters or failed flashings that aren’t sealant joints
If in doubt, call 01277 525 020 or use the quote form and we will say what we think before you book.
Surfaces we seal
- Window and door perimeters on blocks
- Balcony and threshold joints
- Communal entrances and stairwells
- External wall and movement joints
- Shopfronts below residential blocks
- Communal kitchens and washrooms
On site: what to expect
Occupied buildings need a little choreography. We sign and contain the area we’re in, with routes through the building left open and work section by section so the rest of the building stays in use. Jobs in and around smaller places like The Frenches are usually planned as a single visit, so we ask for photographs and rough sizes first. That way the right products come on the day.
- We inspect the joints, building by building, and record what has failed and why.
- We send a fixed quote that sets out the joints, the products and the programme.
- The programme is fixed with you, including dates you can pass on to residents or tenants.
- We remove the old mastic completely and clean the joint faces back.
- Deep joints get backing rod, faces are primed if the manufacturer specifies it, then the joint is sealed and tooled.
- Completed joints are inspected and carry a 12-month workmanship guarantee.
What we need from you
- Let building users know which areas are affected
- Make sure the joints can be reached
- Flag any permit to work we will need
Getting a fixed quote
Need a figure for a tender or a budget? We will quote against your scope and drawings you can plan around. If you have questions first, call 01277 525 020 or use the quote form.
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Also near The Frenches
Other services in The Frenches
Aftercare for building managers
Your facilities or cleaning team can help the joints last. Pass these on to them:
- Reduce knocks to communal area joints
- Avoid piecemeal callouts where you can
- Keep a record of when each building was resealed
- Encourage occupiers to report problems at frames
Where a paintable product was specified, it can be painted after curing. Silicone typically can’t be painted, so keep decorators off it.
Planned resealing is easier to budget than emergency repairs. We can quote buildings in priority order so spending is spread.
The Frenches: questions and answers
Do you cover business parks and estates near The Frenches, such as Gardeners Business Park?
Yes. We cover The Frenches and the area around it, including industrial estates, business parks and retail parks such as Gardeners Business Park. Photos and a short description are enough for a first look.
We manage a building near Mottisfont & Dunbridge station. Can you help?
Yes. Blocks of any size are within what we do. Give us the building’s details and say how residents are notified, and we will quote and plan to suit.
Do you work for managing agents and housing associations?
Yes, block and estate work is a core part of what we do. Buildings are scheduled in turn with dates agreed in advance.
How long does a typical visit take?
It depends on the scope, but the work usually takes a few days for most blocks, with larger programmes scheduled building by building. Larger or phased jobs take longer, and we’ll give you a timescale with the quote.
Is mastic sealing guaranteed?
A 12-month guarantee covers our work. It applies to our workmanship rather than damage or problems with the frames.
Do you do block-wide mastic programmes?
Yes. Each building is inspected, quoted and scheduled in turn starting wherever is most urgent.
How do you reach windows on upper floors?
Every block is different. How upper joints are reached is agreed before work is booked so the fixed quote reflects it.
Should maintenance staff do it?
What you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are easy to get wrong without experience.
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, which is what makes a joint last.
Cost factors for mastic joints
What shapes the price:
- Phasing around occupants
- Which sealant the job calls for
- Induction, permit and paperwork requirements
- How much existing material needs removing
There’s no price list, because the scope varies so much from one building to the next. For a fixed figure, call for a quote.
Before you send an enquiry
A few photos plus some basic facts will normally do. Please tell us:
- Whether the building will be occupied during the work
- Where the site is, with the postcode
- Specification clauses that apply
- The asbestos register, for older buildings
If there’s a specification, drawings or a tender package, send it with your enquiry, and we will price the work to it. Smaller jobs need nothing more than photos and a few notes.
For owners and agents in The Frenches
Rainfall across the South East, The Frenches included, is lower than in many parts of the UK. Outside mastic still needs a dry joint and the right temperature, and the sunniest, most exposed sides of a building usually need attention first.
Trustees of buildings like Church of All Saints can bring frame and external mastic into a planned maintenance list. Historic properties like Mottisfont Abbey, 3.1 miles to the north of The Frenches, show the age of some local stock, where frame mastic must suit soft brick or stone. For owners of several units at places like Gardeners Business Park (1.7 miles south-west of The Frenches), one programme can deal with frame and external mastic across the lot.
The Frenches is about 3 miles west of Romsey, in Hampshire. We cover The Frenches, with the same fixed quotes and 12-month guarantee as everywhere else. The Frenches is one of 723 places we cover in Hampshire for mastic joints. Sites around Southampton have their own page, roughly 9 miles from The Frenches.
Postcode districts covered here: SO51 for mastic joints. Just outside The Frenches, we also work in Shootash (1 mile east), Plaitford Green (2 miles west), West Wellow (2 miles south-west), East Wellow (2 miles south) and Blackhill (3 miles south). A short drive away, we cover Winchester (11 miles east), Eastleigh (10 miles east), Andover (15 miles north), Totton (6 miles south-east), Chandler's Ford (8 miles east) and Hedge End (13 miles south-east).
Landmarks near The Frenches
The nearest railway station is Mottisfont & Dunbridge station, about 2.5 miles north of the centre. Nearby you will also find King Johns House (2.7 miles east) and Romsey Community Hospital (3.4 miles east). The countryside around The Frenches includes Copythorne Common.