Liss mastic sealing
Sealant work in Liss for main contractors, managing agents and facilities managers: mastic sealing for building owners, managing agents and housing associations, quoted at a fixed price.
- Patchy repairs in mismatched sealant
- Movement joints with sealant missing
- Complaints coming in block by block
Need mastic sealing in Liss?
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Building owners, agents and FMs in Liss
Housing associations and managing agents often need work done across blocks and communal areas. We phase the work so people keep access, and each stage is agreed with your contact.
Hospitality, education, healthcare, office and retail clients book us directly too. The work is planned around how the building runs, so guests, pupils, patients or staff are disturbed as little as possible.
How we handle mastic sealing in Liss
For blocks and buildings in Liss and across Hampshire, the process is the same: you send details, we return a fixed quote, the joints are resealed and the 12-month guarantee follows. Addresses, photos of typical joints and a rough idea of quantities let us give a quick quote or we can visit. Most enquiries involve open joints in brickwork or panels and worn sealant at communal door frames, on window and door perimeters on blocks, shopfronts below residential blocks and communal entrances and stairwells. Facilities teams, main contractors and managing agents in Liss tend to want the same three things: a fixed quote, no surprises on site and a 12-month guarantee behind the result.
Older buildings and conversions around places like Liss mix old masonry with newer frames. The mastic there needs to suit both surfaces.
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
- Liss (GU33)
- Wider area
- Hampshire
- Guarantee
- A 12-month guarantee
- Quote
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
When to bring in a specialist
For a quick touch-up, site staff may be fine, but anything bigger is another matter: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.
Some joints are best left to specialists: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. A poor seal in places like these tends to cost more to put right later.
FAQs: Liss
Will you take on a block within reach of Liss station?
Yes, and several blocks can go on one quote. Photos of each elevation help us quote accurately.
Is Liss too small for you to travel to?
Not at all: smaller places are covered as well as towns. Our area covers London and the South East counties. Good photos up front let us bring everything on the first visit.
Do you seal on top of existing sealant?
No. We cut the old material out and clean the joint back before sealing, since fresh sealant will not bond reliably to aged material.
Do you guarantee the mastic work?
A 12-month guarantee covers our work. It covers our workmanship, not later building movement, damage or frame failures.
How many days will you need on site?
The duration is planned around your programme and the access we’re given. We’ll give you an estimate of time on site when we quote.
Do you supply RAMS and insurance details?
Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote. We are CHAS accredited and a Constructionline member.
Can people stay in the building while you reseal?
Occupiers stay in the building throughout. We flag any areas that need internal access well before the dates so you can arrange it with occupiers.
What affects the price in Liss
These are the things that shape the price:
- Phasing around occupants
- Site requirements such as inductions and permits
- Location, for remote and island sites
- The size and state of each joint
Small jobs and large programmes are priced from the same things: scope, access, product and programme. Call for a quote and we will put a fixed figure on it.
Sending details for a quote
There’s no need for a formal survey. A few details are enough to get going:
- Access details, including height
- Photos of the joints, close up and from further back
- Drawings or a marked-up plan, if available
- Any dates the work must fit around
Send us photos, drawings or a joint schedule are often enough for a fixed quote. Where a site visit makes more sense, we will arrange one.
Surface by surface
External movement joints
Joint size and product are matched to the expected movement, often around 2:1 width to depth, as the manufacturer advises.
Window and door perimeters on blocks
Frames vary from uPVC to aluminium and timber, and the product is matched to the frame material and the masonry. We will confirm the colours available for the specified product.
On site: what to expect
Site rules come first: signing in, inductions and any permit to work. With the paperwork done, the joints are worked through in the order agreed with your site contact, and each area is checked before we leave it. For a site in Liss, we plan so the whole job is done in one go where possible. Photos with rough sizes let us arrive with everything needed.
- We inspect each building and record the joints that have failed.
- You get a fixed quote, per block or for the whole programme.
- We agree the programme and dates with you.
- Old mastic is removed and the joint faces prepared.
- New sealant goes in with backing rod and primer where needed.
- Each building is checked and signed off with the 12-month guarantee.
Preparing the site
- Agree which areas must stay open
- Flag any permit to work we will need
- Share the asbestos register for older buildings
Quotes
A handful of photographs and a postcode is the fastest way to a quote. Upload them with the quote form, or give us a call on 01277 525 020 or email drawings and photos to discuss it first.
Related advice
Also in Liss
Why it’s worth doing now in Liss
Reacting to every complaint means sending someone out block by block. A planned programme treats each building once and is simpler to manage and budget. Sealant hardens, cracks and loses grip with age, UV and movement. Renewing it in good time keeps the building weathertight.
Access often affects the price as much as the sealing: easy-to-reach joints are quicker than those that need equipment to get to. Mention the access as part of your enquiry.
What you get with us
- A fixed quote before work starts
- Failed material removed, not covered up
- Work to your specification and the manufacturer’s guidance
- One phone line for London, the South East and Scotland
Read our cost guide and our accreditations.
Looking after buildings in and around Liss
Liss is about 47 miles from central London. Within reach of London, blocks run by agents and associations are common around stations; their frame mastic often ages block-wide. Rainfall across the South East, Liss included, is lower than in many parts of the UK. Even so, frame mastic only goes on in dry, workable conditions, and elevations facing the sun and the prevailing weather are typically where frame mastic ages first.
Churches, halls and community buildings such as Church of St Mary are looked after by trustees and committees like any other owner, and their frames, doors and external joints need mastic renewed in time. For owners of several units at places like Ham Barn Business Park (1.3 miles north-west of Liss), one programme can deal with frame and external mastic across the lot. Blocks of flats and mixed-use buildings often cluster around stations such as Liss station (to the west of Liss) and their window and balcony mastic tends to age at the same rate across a building.
Liss is about 3 miles north-east of Petersfield, in Hampshire. Any commercial site in Liss is covered, whether it’s a single job or part of a planned programme. We work across 723 places in Hampshire, from busy centres to rural villages. Portsmouth is covered too, around 18 miles from Liss.
We cover the GU33 postcode districts for mastic joints. For a building on Station Road, Shotterfield Terrace and Greenfields or nearby, we can quote for mastic joints. We also cover West Liss (1 mile south-west), The Mint (1 mile north-east), Liss Forest (1 mile north), Hill Brow (1 mile south-east) and Durford Wood (1 mile south). Nearby towns on our patch include Havant (13 miles south), Horndean (11 miles south-west), Aldershot (15 miles north), Alton (8 miles north-west), Waterlooville (13 miles south-west) and Petersfield (3 miles south-west).
Landmarks near Liss
We work on buildings around Whistle Stop pub and the streets around them. Liss has its own railway station: Liss station. Well-known places in the area include Petersfield Community Hospital (3.6 miles south-west) and Bear Museum (3.5 miles south-west). Not far away are Liss Riverside Railway Walk South and Wheatham Hill.