
Facade Sealing in Longstock
Commercial sealant work in Longstock for contractors, FMs and building owners: facade joint and window perimeter sealing on commercial buildings, quoted at a fixed price.
- Perimeter sealant that has split or peeled away
- Air leaks through failed facade joints
- Perimeter joints where frames meet the structure
Facade sealing near Longstock
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 Longstock
Whether you are a managing agent, a property factor or an owner’s representative: send details, get a fixed quote, we seal, guaranteed. We can agree access arrangements and keyholder contacts beforehand.
Blocks and communal areas make up much of the work for housing associations and agents. We phase the work so people keep access, with each stage agreed with your site contact.
Facade sealing in Longstock, done properly
We don’t install glazing systems or replace glass. What we seal are the joints around them: perimeter joints where frames meet the structure, panel joints and window perimeters with products suited to facade or glazing perimeter joints. Site teams most often ask us about perimeter sealant that has split or peeled away and discoloured or dirty facade joints, on coping and flashing joints, perimeter joints where frames meet the structure and stone and brick facade joints. Looking for mastic applicators who cover Longstock? We have been sealing commercial buildings since 2005.
For a site near Longstock, the mastic visit is planned so the right sealants, primers and backing rod are on hand, timed to the stage the job has reached. Drawings, photos and the programme let us give a fixed quote.
Every job ends the same way: guaranteed. You get a 12-month guarantee on our workmanship, and the quote explains what it covers.

- Location
- Longstock (SO20)
- Wider area
- Hampshire
- Cover
- 12 months on every job
- Price
- A fixed quote before we start
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026
Maintenance after handover
After handover, these steps help:
- Share access with other external trades
- Check the asbestos register before old mastic is disturbed
- Note when each elevation was last resealed
- Add perimeter sealant to planned maintenance checks
Following storms, look inside for damp or staining near frames. Catching a new leak early keeps the repair small.
Building facade joints into a maintenance cycle avoids emergency repairs. Regular checks let you renew joints before water gets in.
Towns and villages near Longstock
More services for Longstock
On site: what to expect
At the end of each section, the masking comes off, the area is cleaned and every joint is checked with your site contact. Where the sealant needs time to cure before use, we tell you and sign the area. If others near Longstock need work, visits can be combined, which keeps travel down. You’ll have a fixed quote before work starts.
- Photos, drawings or a visit tell us about the joints and the access.
- Product choice follows the joint’s movement and substrate.
- The existing bead comes out in full.
- Primer is applied where the maker specifies it.
- Rod goes in to fix the depth, then the joint is sealed and tooled.
- The finished joints are checked with you.
What we need from you
- For older buildings, check the asbestos register before work
- Let us know about inductions and permits
- Agree which areas must stay open
Request a quote
The quickest route to a quote is a few photos and the site postcode. Send them through the quote form, or call 01277 525 020 or use the quote form if you’d rather talk the job through.
Advice
Building and refurbishing in Longstock
Longstock lies roughly 65 miles out from central London. Towns within reach of London tend to keep building, from flats to offices and schools, so mastic packages have to keep pace with busy programmes. Rainfall across the South East, Longstock included, is lower than in many parts of the UK. Even so, frost and condensation on steel and glass are common on winter mornings, so we time external mastic for dry faces and agree it with the site team.
For a contractor working at a hospital such as Andover War Memorial Hospital, which lies north of Longstock, perimeter and facade sealing is planned around patients and deliveries. For contractors at a school such as Test Valley School, sealing has to be finished before term starts. Work at a hotel such as Sheriff House Hotel (1.3 miles south of Longstock) tends to be programmed around bookings, mastic included.
Longstock is about 5 miles south of Andover, in Hampshire. Any commercial site in Longstock is covered. Longstock is one of 723 places we cover in Hampshire. Southampton is covered too, around 15 miles from Longstock.
Postcode districts covered here: SO20. Sites close to Longstock are covered too, including Leckford (1 mile east), Stockbridge (1 mile south), Fullerton (2 miles north-east), Cottonworth (2 miles north-east) and Chilbolton (3 miles north-east). Nearby towns on our patch include Winchester (9 miles south-east), Eastleigh (13 miles south-east), Andover (5 miles north), Totton (15 miles south), Chandler's Ford (11 miles south-east) and Romsey (10 miles south).
Local landmarks in Longstock
In Longstock, that means premises near Longstock Park and The Peat Spade Public House, among other places. Well-known places in the area include Andover War Memorial Hospital (5.8 miles north). Not far away are Mill Lake.
Different surfaces, different methods
Window and door perimeters
Perimeter joints move as frames expand and contract in the sun. Rod placed at the right depth lets the bead stretch without tearing.
Perimeter joints at frames and structure
The joint around a framed system, where it meets the structure, needs sealant. Our work is that perimeter joint rather than the system it surrounds.
Why deal with it now?
Topping up a failed joint typically buys very little time. A full cut-out and reseal costs more on the day but lasts much longer and avoids repeat call-outs. One visit to deal with every failing joint makes more sense than several trips to a place like Longstock. Photos of every joint help us quote for the whole job.
The price depends on how many linear metres there are, what has to come out first and how the joints are reached. Call for a quote once you have the details.
Why appoint us
- Fully insured
- Fixed quotes based on photos, drawings or a visit
- A Constructionline member, so easy to vet
- CHAS accredited
Take a look at what affects the cost or our accreditations.
Common questions from Longstock clients
Is a hospital such as Andover War Memorial Hospital somewhere you can work?
Yes, healthcare and care buildings are part of our work. Each area is agreed with the ward or department and the estates team in advance.
Can the mastic package for our job in Longstock follow the site programme?
Yes. The mastic is planned around your key stages. Any paperwork you need, from RAMS to our insurance certificate and CSCS details, is confirmed with the quote.
What’s the quickest route to a quote?
It works in four steps: send details, get a quote, we seal, guaranteed. Step one needs little more than photographs and a postcode.
Do you use silicone for external joints?
The product follows the joint’s movement, the surfaces and the specification. Specifications often refer to BS EN 15651-1 for facade sealants or BS EN 15651-2 for glazing and we follow the specified product.
Can you fit around our working hours?
We are in the office from 8am until 5pm, Monday to Friday. Tell us your site hours and access windows and the work will be fitted around them.
Can the sealant be colour-matched?
It depends on the product specified. Some ranges are wide, others limited, so the available colours are confirmed with the quote.
Do you need to see the site first?
Many jobs can be quoted from photographs, drawings or a joint schedule. If the job needs a look first, we will arrange a visit.
Cost factors for facade joints
A fixed quote reflects the actual work. It takes account of:
- The size and state of each joint
- The total length or number of joints
- Induction, permit and paperwork requirements
- Phasing around occupants
Pricing facade joints depends on how many there are, their condition and the access, and any specification that applies. Call for a quote.
What we need to price the job
A few photos plus some basic facts will normally do. Please tell us:
- What the building is and how it’s used
- Anything awkward about access or site hours
- Your programme or deadline
- Photos of the joints, close up and from further back
Photos, drawings or a schedule of the joints and a fixed quote comes back to you. If the job needs a look first, we will arrange a site visit.