Mastic sealing for building owners and managing agents in Cottonworth, Hampshire
Looking for mastic sealing in Cottonworth? Send us the details for a fixed quote, backed by a 12-month guarantee on the work.
- No planned programme for sealant
- Cracked, hardened mastic round windows on a block
- Communal area joints that look neglected
Mastic sealing in Cottonworth
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Owners, agents and contractors
Hotels, schools, healthcare sites, offices and retail units come to us directly as well. We plan around the way the building is used, so guests, pupils, patients or staff are disturbed as little as possible.
Whether you’re a managing agent, a property factor or an owner’s representative: send the details, accept a fixed quote, and we carry out and guarantee the work. We can agree access arrangements and keyholder contacts beforehand.
About our mastic sealing in Cottonworth
For blocks and buildings in Cottonworth 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, and site visits can be arranged. If you’re dealing with draughts at frames across a block and damp patches beside frames, we can help, on window and door perimeters on blocks, external wall and movement joints and shopfronts below residential blocks alike. Whether you call it commercial sealant work, mastic application or joint sealing, in Cottonworth it comes down to the same thing: failed joints cut out, faces prepared and the right sealant laid to the right depth.
Owners and agents with buildings around smaller places such as Cottonworth tend to manage small terraces of association properties, converted barns and commercial units. Frame and wall-joint mastic on all of them ages and hardens.
Building owners and contractors get the same cover: a 12-month guarantee on our workmanship. It doesn’t extend to damage, faults in the building or work by others, and we are upfront about that.
- Where
- Cottonworth (SP11)
- Region
- Hampshire
- Guarantee
- 12 months on our workmanship
- Quote
- Quoted before any work starts
- Phone
- 01277 525 020
- Updated
- 3 November 2026
Your questions answered
Is a smaller place like Cottonworth outside your area?
Not at all. Cottonworth is within our area. Our area covers London and the South East counties. Send photographs and a list of what needs doing, and we will plan the job to need as few trips as possible.
We manage a building near Andover station. Can you help?
Yes, we work for agents, landlords and housing associations with blocks of every size. We work to your notice and access arrangements.
Who decides which product is used?
Where there’s a specification, we use the product it names. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.
Is it fine to apply new sealant on top of old?
No. Overlaying old sealant is a frequent cause of early failure, so everything comes out first.
Can you follow the specification on our project?
Yes. Send it with your enquiry, and we will price the work to it.
Do you guarantee the mastic work?
Our workmanship carries a 12-month guarantee, backed by public liability insurance.
Is asbestos a concern with old mastic?
Some mastics in pre-2000 buildings contain asbestos. We ask for the asbestos register or survey before work starts and suspect material is tested first.
How a job runs
In a busy building, we agree a sequence with your contact so the disruption stays in one area at once. Each section is protected, cleaned back and sealed, then handed back before the next one starts. For a building around Cottonworth, tell us how to find it and who will meet us. Add it to your enquiry and we’ll build it into the plan.
- First comes a look at the joints and, for older buildings, the asbestos records.
- The products and programme are set out in a fixed quote.
- We strip out the old sealant.
- Joint faces are cleaned, backed and resealed.
- Buildings are completed in turn.
Before we start on site
- Move anything stored against the joints
- Confirm the product named in the specification
- Agree which areas must stay open
Ask for a quote
Pricing a project or setting a maintenance budget? We’ll quote against your scope and drawings you can plan around. For a chat about it beforehand, speak to us on 01277 525 020 or send photos by email.
Advice
Doing it in-house
There’s also the paperwork. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and we’ll confirm the paperwork you need with the quote.
For most general trades, sealant is a sideline. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint.
What we can’t put right
Before quoting, we check that sealant is the right answer. It won’t put right:
- Glazing that needs replacing
- Substrate edges that need repairing first
- Water coming in from the roof or rainwater goods
If in doubt, phone 01277 525 020 or email drawings and photos and we will say what we think.
Where we work in Cottonworth
- Window and door perimeters on blocks
- External wall and movement joints
- Balcony and threshold joints
- Communal entrances and stairwells
- Communal kitchens and washrooms
- Shopfronts below residential blocks
Looking after buildings in and around Cottonworth
Cottonworth is in the South East, one of the UK’s drier regions. Outside mastic still needs a dry joint and the right temperature, and elevations facing the sun and the prevailing weather are typically where frame mastic ages first. Central London is about 63 miles from Cottonworth. Commuter-belt towns tend to have plenty of managed blocks near stations and town centres, and window and balcony mastic on them tends to age at the same rate.
Blocks of flats and mixed-use buildings often cluster around stations such as Andover station (4.1 miles north of Cottonworth) and their window and balcony mastic tends to age at the same rate across a building. If you own or manage units on a site such as Harewood Forest Industrial Estate, 2.9 miles to the north-east of Cottonworth, failed mastic on frames, door surrounds and external joints can be dealt with unit by unit.
Cottonworth is about 4 miles south of Andover, in Hampshire. Across the SP11 postcode area, the process is the same: details in, fixed quote out, then sealing and a 12-month guarantee. Cottonworth is one of 723 places in Hampshire on our list for mastic joints. Our Southampton page has more on work in that area, about 17 miles away.
If you need mastic sealing in SP11, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. If your building is just outside Cottonworth, we cover Fullerton (1 mile south-west), Chilbolton (1 mile east), Wherwell (1 mile north-east), Wherwell Wood (1 mile north) and Leckford (1 mile south). Further afield, our area takes in Winchester (9 miles south-east), Eastleigh (14 miles south), Andover (4 miles north), Chandler's Ford (12 miles south), Romsey (11 miles south) and Hyde (9 miles south-east).
What’s near Cottonworth
We work on buildings around Longstock Park and Abbots Mitre pub. Cottonworth’s nearest station is Andover station, about 4.1 miles north. Nearby you will also find Andover War Memorial Hospital (4.4 miles north) and Andover Museum (3.8 miles north). Green spaces nearby include Anton Lakes and Mill Lake.
Common problems we fix in Cottonworth
Topping up old mastic is a common shortcut. New silicone has nothing to grip on old silicone, so these repairs rarely last.
Look out for the following:
- Draught complaints from residents or tenants
- Patchy repairs in mismatched sealant
- Failed external movement joints
- Communal area joints that look neglected
Older community buildings, Church of St Mary the Less among them, often have frames of mixed ages whose mastic varies.
What to look for in a quote
- Whether old or failed sealant will be cut out, not overlaid
- What level of public liability insurance do they hold?
- Are they CHAS accredited or on Constructionline?
- Do they follow the manufacturer’s priming guidance?
Different surfaces, different methods
External movement joints
Movement joints are cleaned out, backed with rod and resealed with a sealant of the right movement class.
Communal areas
Entrance doors, screens and corridor junctions in communal areas all have sealant joints. Fresh joints make shared areas look looked after.