Exclusive Offers for
London Property Owners
Professional-grade service packages designed to save you time, reduce costs, and protect your property investment. No gimmicks — just genuine value.
With Any Heating Service
Complimentary Boiler Health Check
Book any heating or gas service and receive a full boiler diagnostic at no extra cost. Our engineer will assess your boiler's condition, identify potential issues, and provide a written report — helping you avoid expensive breakdowns before they happen.
What's Included
- Full visual and operational inspection
- Flue gas analysis reading
- System pressure and safety check
- Written condition report with recommendations
Save Time and Coordination Costs
Landlord Annual Package
Combine your CP12 gas safety certificate, annual boiler service, and electrical inspection into one scheduled visit. Designed for landlords and property managers who need compliance without the admin overhead.
What's Included
- CP12 gas safety certificate (legal requirement)
- Full boiler service and efficiency check
- Electrical safety visual inspection
- Single invoice, same-day digital certificates
Guaranteed Same-Day Attendance
Priority Emergency Membership
Join our priority response list for guaranteed same-day attendance on all emergency call-outs. Ideal for property managers with multiple units and landlords who need certainty when things go wrong.
What's Included
- Guaranteed same-day emergency response
- Priority scheduling over standard bookings
- Dedicated account manager
- Annual membership with no per-call surcharges
Complete System Upgrade
New Boiler Installation Package
Upgrade your heating system with a new A-rated boiler installation including a full system flush, magnetic filter installation, wireless thermostat, and up to 10 years manufacturer warranty. Fixed pricing with no hidden costs.
What's Included
- A-rated combi or system boiler supply and fit
- Full system powerflush
- MagnaClean magnetic filter
- Wireless smart thermostat included
Earn Credit Toward Your Next Service
Refer a Neighbour Incentive
Refer a neighbour, friend, or colleague to MAMOSS. When they book and complete a job, you receive credit toward your next service. No limits on referrals — the more you share, the more you save.
What's Included
- Credit applied after referred job completion
- No limit on number of referrals
- Valid for any MAMOSS service
- Referral tracked and confirmed automatically
Prepare for Winter
Seasonal Heating System Check
Before the cold sets in, ensure your heating system is running at peak efficiency. Our seasonal check includes a radiator balance, boiler efficiency test, thermostat calibration, and system pressure check — preventing mid-winter breakdowns.
What's Included
- Full radiator balancing
- Boiler combustion efficiency test
- Thermostat and timer calibration
- System pressure and expansion vessel check
Ready to Take Advantage of These Offers?
Contact our team today to claim your offer or discuss a bespoke package for your property needs.