Old Netley mastic sealing
Mastic sealing for building owners, managing agents and housing associations in Old Netley. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Open joints in brickwork or panels
- Estate-wide sealant that is simply worn out
- No planned programme for sealant
Mastic sealing across Old Netley
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
On site: what to expect
Before any cutting starts, the area is protected: masking tape along the joint edges and sheeting over anything nearby. The work itself typically takes anything from a day to a few weeks, depending on the number of buildings and joints, and we clear our waste as we work. Smaller jobs around Old Netley can be grouped with others nearby, which keeps travel down. You will have a fixed quote before work starts.
- First we look at the mastic on each building and note what needs replacing.
- You get a fixed quote, priced per building where that helps your budgeting.
- The sequence and the dates are fixed with you, giving you what you need to notify occupiers.
- 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.
- Finished joints are looked over and the 12-month guarantee confirmed.
Preparing the site
- Tell us your opening times and when work is allowed
- Point out any areas we must not close
- Point out parking and an unloading spot
Getting a fixed quote
If there’s a specification, drawings or a tender package, send it with your enquiry, and we will price against exactly what is specified. For smaller jobs, photographs and a description will do.
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About our mastic sealing in Old Netley
Owners and agents usually inherit a building’s mastic rather than choose it and it slowly wears out: window perimeters, door frames, external joints and communal junctions all rely on it. Once it cracks, hardens or comes away, draughts and water find a way in, and occupiers start reporting it. We work on external wall and movement joints, balcony and threshold joints and window and door perimeters on blocks, and the usual reasons a site gets in touch are old repairs sealed over failed mastic and the same joint failures repeated across a portfolio. For commercial sealant work in Old Netley, you deal with one contact from quote to sign-off, whether it’s one building or several.
Owners and agents with buildings around smaller places such as Old Netley tend to manage small terraces of association properties, converted barns and commercial units. Mastic around frames and on external joints wears out in time, whatever the building.
Our workmanship is guaranteed for 12 months. If a joint we sealed fails because of how it was installed, we come back and put it right.
- Location
- Old Netley (SO31)
- Wider area
- Hampshire
- Guarantee
- 12 months on every job
- Quote
- Quoted before any work starts
- Call
- 01277 525 020
- Page updated
- 3 November 2026
Surface by surface
Tenement and older buildings
Traditional buildings have joints that need a careful approach. We look at the substrate before choosing a sealant.
Planned maintenance
Resealing can be scheduled alongside other planned works on a timetable you set.
For owners and agents in Old Netley
Old Netley sits close to the coast, within about 2 miles. On buildings near the shore, the side facing the weather usually needs its mastic renewed first. Five care or nursing homes sit less than 2 miles from Old Netley. Frame mastic on care buildings is best renewed elevation by elevation, with the manager deciding timings.
For a school such as Bursledon Church of England Infant School, perimeter mastic on windows and doors is a holiday job. Blocks of flats and mixed-use buildings often cluster around stations such as Bursledon station, 1 mile to the south-east of Old Netley, and their window and balcony mastic tends to age at the same rate across a building. If you manage student housing near a university such as Solent University, which lies west of Old Netley, the summer turnaround is the time for mastic.
Old Netley is about 2 miles south-west of Hedge End, in Hampshire. We cover commercial sites throughout Old Netley, for single jobs and planned programmes alike. Across Hampshire, 723 places are covered, Old Netley among them.
Business premises anywhere in SO31 are within our area for mastic joints. For a building on Darlee Gate, Green Lane and Cranbury Gardens or nearby, we can quote for mastic joints. If your building is just outside Old Netley, we cover Lowford (1 mile north-east), Bursledon (1 mile east), Butlocks Heath (1 mile south-west), Hound (1 mile south-west) and Netley (1 mile south-west). Further afield, our area takes in Winchester (12 miles north), Gosport (10 miles south-east), Havant (15 miles east), Eastleigh (5 miles north), Fareham (6 miles south-east) and Horndean (14 miles east).
What’s near Old Netley
Around Old Netley, our work takes us to commercial buildings near Oasis Academy Mayfield, Westwood Woodland Park and The Linden Tree pub. Old Netley’s nearest station is Bursledon station, about 1 mile south-east of the centre. Well-known places in the area include Coldeast (2.3 miles south-east) and Bursledon Brickworks Industrial Museum (1.6 miles east). The countryside around Old Netley includes Netley Common.
Other services in Old Netley
When it isn’t the sealant
A few problems need another trade or a different fix, and we say so rather than covering them up:
- Misted or failed double-glazed units
- Frames that are rotten, warped or broken
- Old mastic suspected of containing asbestos, which must be tested and dealt with by a specialist first
Not sure which it is? You can call 01277 525 020 or email us and we’ll tell you honestly before you book.
What we seal
- Balcony and threshold joints
- External wall and movement joints
- Window and door perimeters on blocks
- Shopfronts below residential blocks
- Communal kitchens and washrooms
- Communal entrances and stairwells
Common questions from Old Netley clients
Is Hedge End Retail Park, near Old Netley, within your area?
Yes, sites like Hedge End Retail Park are within our area, along with the rest of Old Netley. Send details of the unit and the work through our quote form for a quick quote.
Is Old Netley off your patch?
Not at all: smaller places are covered as well as towns. We cover Greater London and the counties of the South East. Where we can, we group nearby jobs to make the most of each trip.
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 do I request a quote?
You can use the quote form on this site; alternatively, ring 01277 525 020 or send photos by email. Photos, drawings or a joint schedule help us quote quickly.
How many days will you need on site?
The duration is planned around your programme and the access we are given. We’ll give you an estimate of time on site when we quote.
Do you do block-wide mastic programmes?
Yes, planned programmes suit estates and portfolios. You get a fixed quote per building or for the whole job.
What paperwork can you provide?
Let us know your requirements: tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote. We are CHAS accredited and a Constructionline member.
Work for main contractors and building owners
Hospitality, education, healthcare, office and retail clients book us directly too. We plan around the way the building is used, so the building keeps working while we do.
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.
What happens if it’s left?
Mixed repairs by different contractors leave a patchwork of products and colours. Resealing a whole building gives a consistent finish. Older rural buildings around Old Netley move with the seasons, and rigid or tired sealant can’t keep up. The right product, sized to the joint, copes much better.
Pricing mastic joints depends on quantities, condition and access, and any specification that applies. Call for a quote.
Why choose Mastic Doctor in Old Netley
- A Constructionline member, so easy to vet
- Standard and matched colours in many product ranges
- Joints cleaned back to sound surfaces
- Fully insured, including public liability cover
See what affects the cost or our accreditations and insurance.
Quoting for work in Old Netley
The price varies from site to site. It mainly depends on:
- Phasing around occupants
- Specialist products, such as fire-rated or hygienic sealants
- Backing rod, priming and other preparation
- The site’s rules and procedures
Larger quantities, tricky access or phasing all shape the price. So do site requirements such as inductions and permits, along with the time of year for external work.
What to include in your enquiry
To price the job accurately, we need a clear picture of the site. Useful things to include:
- Where the site is, with the postcode
- The asbestos register, for older buildings
- Any dates the work must fit around
- The product your specification calls for
A handful of photos and a postcode is the fastest way to a quote. Send them through the quote form, or give us a call on 01277 525 020 or use the quote form to discuss it first.