Sysco Environmental Ltd

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Sysco Environmental Ltd We are an occupational hygiene and environmental consultancy delivering professional monitoring and risk evaluation solutions.

Did you know overnight humidity above 60% makes dust mites and mould more active?Then: many households treated damp as j...
01/10/2026

Did you know overnight humidity above 60% makes dust mites and mould more active?

Then: many households treated damp as just a chill. Now: DEFRA AQEG and related research show that controlling overnight relative humidity reduces allergen activity and mould growth, and that short-term humidity monitoring gives a clear, objective measure to guide fixes. https://uk-air.defra.gov.uk/research/aqeg/

Why this matters: sustained high overnight RH can worsen asthma and allergies and can be evidence of poor ventilation or drying practices in rented homes, with potential liability for landlords. Try a simple self-check: put a small hygrometer in the bedroom and log overnight RH for a week. If readings regularly exceed 60%, try a dehumidifier, dry laundry outside where possible and increase modest ventilation. If levels stay high, our team can carry out short-term humidity logging and a technical report so you have clear evidence to arrange repairs or improvements. Message us for advice or to book logging.

Sealed-up homes through the summer, then the heating goes on - indoor pollutants can build up quickly.The IAQM guidance ...
30/09/2026

Sealed-up homes through the summer, then the heating goes on - indoor pollutants can build up quickly.

The IAQM guidance (https://iaqm.co.uk/guidance/) reminds us that when doors and windows stay shut and heating changes airflow, concentrations of VOCs, CO2 and allergens can rise. Simple steps help: use trickle vents, run cooker hoods on extract rather than recirculate, and open windows for short timed purges of fresh air each day.

For landlords and property managers there is a real business implication: poor ventilation or a lack of clear evidence can lead to tenant complaints, possible damp and mould, and avoidable remedial costs or liability. A short monitoring run gives defensible data so you know whether action is ventilation, repairs or further investigation.

Try a 10-minute purge in the morning and evening, or message our team to arrange a short monitoring run so you can see what is actually building up indoors.

Landlords: new guidance on damp and mould complaints is getting stricter.CIEH has been highlighting enforcement and clea...
29/09/2026

Landlords: new guidance on damp and mould complaints is getting stricter.

CIEH has been highlighting enforcement and clearer tenant advice, which changes what local authorities expect when a complaint arrives: https://www.cieh.org/news

Key implications for landlords:
1. Investigate promptly - delays increase risk of enforcement and tenant harm. A quick, evidence-led check limits liability.
2. Link cause to cure - a short professional report that explains why mould formed and what remedial work is needed speeds repairs and avoids repeat problems.
3. Record actions - documented advice to tenants and repair steps helps show compliance if a case is reviewed by an inspector or tribunal.

Our team can inspect, advise on immediate tenant actions and provide the clear report landlords need. Message us for a pre-inspection checklist or to discuss when a formal survey is appropriate.

Feeling warmer upstairs but cool downstairs? When warm air rises it creates stack-driven flows that can draw soil gases,...
28/09/2026

Feeling warmer upstairs but cool downstairs? When warm air rises it creates stack-driven flows that can draw soil gases, including radon, into gaps and concentrate them around upper rooms. DEFRA AQEG research shows how temperature gradients change indoor pollutant movement, so a single short test in one room can give a misleading picture: https://uk-air.defra.gov.uk/research/aqeg/

If you live in a higher-risk area, a long-term radon test placed where people actually spend time - bedrooms and main living spaces - gives a more reliable assessment. For landlords and building managers this matters for compliance and potential liability. Our team carries out long-term testing and reports that link measured levels to occupancy and practical next steps. Message us to discuss a long-term test or to check the best places to put detectors in your home.

Musty smell in the loft after warm afternoons followed by cool nights?Try these quick checks:1. Look for dark or powdery...
25/09/2026

Musty smell in the loft after warm afternoons followed by cool nights?

Try these quick checks:
1. Look for dark or powdery patches on insulation or along timber joists.
2. Check that loft vents, eaves and soffits are clear and unblocked.
3. Note any wet, compressed or displaced insulation around pipes or rooflights.

Temperature swings drive moisture into roof voids; without adequate ventilation or a continuous insulation layer that moisture can feed hidden mould and accelerate timber decay. That can raise repair costs, damage stored items and create landlord liability if not addressed. For further context see CIBSE Journal: https://www.cibsejournal.com/news

If the smell is persistent or you find visible mould or stained timbers, this points to a fabric or ventilation defect needing measurement. Suggested image: photo of a roofspace showing insulation and vents.

Book a roofspace survey with our team for a measured report and clear next steps.

Windows wet every morning as autumn cools down?Condensation on glazing is the most visible sign that indoor air is too h...
24/09/2026

Windows wet every morning as autumn cools down?

Condensation on glazing is the most visible sign that indoor air is too humid and can lead to mould on walls and window reveals. Mould can aggravate asthma and allergies; for official health and housing guidance see the NHS and gov.uk.

Try a quick self-check: wipe a corner of the pane, look for black specks on the sill or nearby plaster, and note whether drying clothes indoors or poor ventilation matches the problem. For landlords, persistent mould is also a compliance and liability risk. Message our team for a free checklist or book an inspection if you find recurring damp or mould - we can measure humidity, identify sources and provide a clear report.

Flaking old paint in the summer heat?In properties built before the 1970s, heat and direct sunlight can make legacy lead...
23/09/2026

Flaking old paint in the summer heat?

In properties built before the 1970s, heat and direct sunlight can make legacy lead-based paint blister and flake, creating dust and surface contamination that is especially risky for young children. BOHS guidance emphasises that removal or disturbance needs safe testing and containment, not casual sanding (BOHS Proficiency Modules: https://www.bohs.org/qualifications).

For landlords this can be a compliance and liability issue; for homeowners, DIY sanding or sweeping can spread contamination and raise remediation costs. Do not sand or dry-scrape flakes, and avoid vacuuming with a standard machine.

Message us to arrange surface sampling by our laboratory and to get clear next steps on containment and safe removal.

Seeing a rise in mould complaints now summer is ending?Local authorities and tenants often report more cases once heatin...
22/09/2026

Seeing a rise in mould complaints now summer is ending?

Local authorities and tenants often report more cases once heating and ventilation patterns change and condensation appears. The Chartered Institute of Environmental Health (CIEH) has highlighted the housing-health link and landlord responsibilities - see their briefing at https://www.cieh.org/news. That matters for landlords and managers because unresolved mould can lead to enforcement action, tenant complaints and unclear liability if you lack documented evidence.

Start with a simple, recorded self-check: photograph affected areas, note when condensation or damp appears, record recent heating and drying habits and check extractor fans and trickle vents. If mould returns or you need evidence for repairs or enforcement, our team can carry out a survey and provide an evidence-grade report you can use in remediation discussions. Message us for advice or to book an inspection.

Noticed a musty smell in rooms you barely used over summer?Smells like that often point to hidden mould in lofts, behind...
21/09/2026

Noticed a musty smell in rooms you barely used over summer?

Smells like that often point to hidden mould in lofts, behind wardrobes or where furniture sits against cold walls. CIBSE Journal has reported seasonal spikes in IAQ complaints after warm, humid spells: https://www.cibsejournal.com/news. Mould spores can also worsen asthma and allergic symptoms (see UKHSA guidance).

Try a quick self-check: open wardrobe doors, pull furniture a short distance from walls, look into the loft and at eaves, and watch for dark spots, staining, peeling paint or persistent damp patches. If you find growth, or the smell returns after cleaning, message our team to arrange a focused inspection. We can assess, measure and report - humidity logging, targeted sampling and a clear written report to help homeowners and landlords reduce complaint risk, repair costs and potential liability.

Radon is not just a winter problem - sealing up a home for summer can raise indoor radon levels when windows and trickle...
17/09/2026

Radon is not just a winter problem - sealing up a home for summer can raise indoor radon levels when windows and trickle vents are kept shut.

Key points to know:
1) Airtight homes can trap soil gas all year, so short summer checks may miss a real exposure risk.
2) Long-term measurements give the evidence landlords, homeowners and local authorities need to manage liability and avoid costly, ineffective fixes.
3) gov.uk publishes radon maps and guidance so you can see if your postcode is higher risk.

If you live in a higher-risk postcode or notice higher readings when doors and windows stay closed, buy an alpha track long-term test or message us to arrange long-term detectors and a formal report. Our team and laboratory can measure, interpret results and advise on mitigation so decisions are based on reliable data, not guesswork.

Address

Unit 1, Barnsley Road, Hoyland
Barnsley
S740QN

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 4pm

Telephone

+441709931028

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