Mastic sealant contractors in Stroud
Mastic sealing for building owners, managing agents and housing associations in Stroud and across Hampshire. CHAS accredited and fully insured, with a 12-month guarantee.
- Damp patches beside frames
- Old repairs sealed over failed mastic
- The same joint failures repeated across a portfolio
Mastic sealing in Stroud
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
How we handle mastic sealing in Stroud
For over 20 years we have resealed joints for owners, agents and landlords. Every applicator holds a CSCS card and we hold public liability insurance. Each building we complete carries a 12-month guarantee on our workmanship. If you have window mastic that has split and shrunk and water getting in round frames after rain, we can help. Looking for mastic applicators who cover Stroud? We’ve been sealing commercial buildings since 2005, CHAS accredited and a Constructionline member.
Rural conversions near places like Stroud often set modern frames into older stone, flint or brick. Perimeter mastic there has to grip an uneven face and suit the building’s character.
Guaranteed is the last step of every job. You get a 12-month guarantee on our workmanship, and the quote explains what it covers.
- Place
- Stroud (GU32)
- Region
- Hampshire
- Cover
- A 12-month guarantee
- Price
- Quoted before any work starts
- Phone
- 01277 525 020
- Updated
- 3 November 2026
What the job involves on each surface
Planned maintenance
How long mastic lasts depends on exposure, movement and the product used. Inspecting joints regularly keeps programmes on track.
Commercial and mixed-use buildings
Landlords with commercial portfolios have shopfronts, office entrances and external joints to look after. We work across portfolios on a planned basis.
Also near Stroud
Also in Stroud
Cost factors for mastic joints
We price every job individually. The things that drive the figure:
- Quantities, in metres or numbers
- Working within restricted access windows
- The size and state of each joint
- Whether old sealant has to be cut out first
Small jobs and large programmes are priced from the same things: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote and we’ll put a fixed figure on it.
What we need to price the job
We can often quote from photos and a few details. Please tell us:
- Approximate linear metres or a joint schedule
- The type of building and who uses it
- Photos of the joints, close up and from further back
- Access details, including height
Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. The easiest way is to ring 01277 525 020 or email the details over.
Diagnose, treat, sign off
Diagnose, treat, sign off: every visit follows that pattern. First comes an inspection and agreement on scope, then the work is carried out to the specified product and detail, and we finish with a walk round so the work can be signed off. For work around Stroud, we aim to finish in one visit, so we ask for photographs and rough sizes first. Then the right materials arrive with us.
- We inspect each building and record the joints that have failed.
- The quote is fixed and split as suits you.
- 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.
Getting the site ready
- Point out any areas we must not close
- Share your working hours and any access restrictions
- Move anything stored against the joints
Get a fixed quote
Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to give us a call on 01277 525 020 or email us with what you know.
Related advice
Signs you need mastic sealing in Stroud
Occasionally the substrate fails, not the sealant for example where render or brick edges crumble. If the edges are unsound, we say so before quoting the sealing.
It’s worth sending us details if you spot any of the following:
- Damaged joints in communal entrances and corridors
- The same joint failures repeated across a portfolio
- Failed external movement joints
- Damp patches beside frames
Site managers at schools like Langrish Primary School can fit frame mastic into the summer works.
Before you book anyone
- Are they CHAS accredited or on Constructionline?
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
- Whether their applicators hold CSCS cards
- Which product they’ll use, and why it suits the joint
Questions about Stroud
Do you take on block-wide or estate-wide mastic work in Stroud?
Yes. Planned programmes across a building, block or estate are a core part of this service. Send the addresses and photographs and we will give a fixed quote.
Is Stroud too small for you to travel to?
No. Places such as Stroud are covered as much as the big towns. Our area covers London and the South East counties. Send photographs and a list of what needs doing, and we’ll plan the job to need as few trips as possible.
Can you send RAMS and CSCS details before starting?
Let us know your requirements: tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote. We hold CHAS accreditation and Constructionline membership.
What if the old mastic contains asbestos?
In older buildings, old mastic can contain asbestos. We check the asbestos register or survey before disturbing it and suspect material is tested first.
Do you guarantee the mastic work?
Every building we reseal has a 12-month guarantee. It covers our workmanship, not later building movement, damage or frame failures.
Will you just go over the old sealant?
No. Sealing over old material is one of the classic causes of early joint failure, so everything comes out first.
Can you take on resealing for a block portfolio?
Yes. Most of our mastic sealing is for agents, factors, housing associations and portfolio landlords, and we quote building by building or as a programme.
Looking after buildings in and around Stroud
Stroud lies roughly 51 miles out from central London. Within reach of London, blocks run by agents and associations are common around stations. Stroud is in the South East, one of the UK’s drier regions. Outside work still depends on dry joints, and south- and west-facing elevations, which take the most sun and rain, often age first.
Older community buildings, Stroud Mission Church among them, often have frames of mixed ages whose mastic varies. If you look after a block within reach of Petersfield station, which lies east of Stroud, frame and balcony mastic can be renewed on one programme.
Stroud is about 2 miles west of Petersfield, in Hampshire. Businesses, contractors and managing agents in Stroud use us for work on mastic joints, as part of our coverage of Hampshire. Our Hampshire coverage takes in 723 places. Sites around Portsmouth have their own page, about 15 miles away.
Anyone looking for mastic sealing in GU32 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. For a building on Winchester Road, Stroudfields and Ramsdean Road or nearby, we can quote for mastic joints. We also cover Langrish (1 mile west), Petersfield (2 miles east), Froxfield Green (2 miles north-west), Steep (2 miles north-east) and High Cross (2 miles north) for mastic joints. Further afield, our area takes in Winchester (15 miles west), Havant (10 miles south), Fareham (15 miles south-west), Horndean (7 miles south), Alton (10 miles north) and Waterlooville (9 miles south).
Landmarks near Stroud
In Stroud, that means premises near The Petersfield School, Morton House School and Seven Stars pub and the streets around them. The closest station to Stroud is Petersfield station, about 1.3 miles east. Nearby you will also find Petersfield Community Hospital (1.3 miles east) and Clanfield Earthwork (4.2 miles south). Open spaces near Stroud include Liss Riverside Railway Walk South and Pidham Hill.
Looking after the joints
Every sealant joint needs some looking after, and their life depends on movement, exposure, cleaning and use. Our advice:
- Mention RAMS, insurance or CSCS requirements up front
- Have the asbestos survey to hand for older buildings
- Keep a record of when each building was resealed
- Look at the sunniest and most exposed elevations first
Ask residents or tenants to report draughts or leaks round windows early. A quick report keeps a small repair small.
Joints on a building age together so a single failure is a sign to check the rest. Doing them together saves going back again and again.
Doing it in-house
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.
Certain joints really need a specialist: 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.