About Us
HVAC Designers, Contractors & Project Managers
ByHolla Services is an Air Conditioning, Plumbing installation and servicing outfit, located in Lagos State, Nigeria. With Mechanical Engineering and Project Management training and experience, and membership in ASHRAE (American Society of Heating, Refrigerating and Air-Conditioning Engineers), we are equipped to deliver quality standards across all services.
Who We Are
Engineering Rigour, Quality Standards, Real Results
ByHolla Services was founded in 2012 with a clear mission: bring genuine engineering rigour to HVAC, plumbing, and mechanical installations across Nigeria. Too many buildings were dealing with poorly sized systems, messy installations, and contractors who disappeared after payment. We set out to be different.
Today we are an ASHRAE-member firm with certified expertise in cooling load calculation (HAP), construction quality management (CIOB), Google project management, and system commissioning. From our base in Lagos State, we serve clients across Nigeria: Lagos, Ogun, Oyo, Port Harcourt, and Abuja.
The result speaks for itself: over 800 clients served, a 5.0 Google rating, and clients who keep coming back because they know the work is done right. When you choose ByHolla, you are choosing peace of mind.
Our Purpose
Vision & Mission
Our Vision
To set new standards in comfort and luxury in homes, offices, and every aspect of life in Nigeria and the rest of Africa. We believe that proper heating, cooling, ventilation, and air quality should be accessible, reliable, and built to last.
Our Mission
To provide clients their detailed needs, in alignment with sustaining a green environment. Every system we design and install considers energy efficiency, environmental impact, and long-term sustainability alongside immediate comfort and performance.
Our Services
What We Do (Not Limited To)
A comprehensive range of mechanical, HVAC, and plumbing services delivered by certified engineers.
Professional Credentials
Certified for Commercial-Scale Projects
Our lead engineer holds internationally recognised certifications that matter when you are building or upgrading a facility:
HVAC Load Calculations (HAP) Certification
Your AC is sized using real engineering calculations, not guesswork. The right capacity means lower electricity bills and no wasted money on an oversized or undersized unit.
Commissioning and Startup Professional Certificate
Every system is tested and verified to perform exactly as designed before handover, so you get reliable cooling from day one.
CIOB Construction Quality Management Professional Certificate
Our work meets international quality standards for construction projects, giving you confidence the job is done properly and built to last.
Member of ASHRAE
As a member of the American Society of Heating, Refrigerating and Air-Conditioning Engineers, we stay current with global HVAC best practices and bring that knowledge to every project in Nigeria.
Google Project Management Certified Professional
Professional project management certification ensuring your HVAC project is delivered on schedule, within budget, and to the agreed scope, with clear communication at every stage.
What We Stand For
Certified Expertise
Every system is engineered with proper load calculations, not guessed. ASHRAE membership keeps us current with global best practices.
Clean, Lasting Work
Neat installations and honest repairs. We do the job properly so it lasts, protecting your walls, ceilings, and investment.
Customer First
Transparent pricing, fast response, and follow-up support. You are never left in the dark, and we never disappear after payment.
Let's Build Your Project
From a single AC unit to a full building project, get a straight answer on WhatsApp. No pressure, no obligation.