Wiring, solar, CCTV, and industrial installations led by a Registered Electrical Engineer. DOLE COSH certified. Contract backed. Built to pass inspection the first time.
From a single-line diagram to a hybrid solar commissioning, every job is scoped, drawn, and signed off by a licensed engineer.
Residential and commercial wiring designed to PEC standards. New construction, renovations, panel upgrades, and inspection-ready documentation.
Level 1 and Level 2 EV charging installations for homes, condos, offices, and commercial parking. Compatible with all major EV brands.
Off-grid, grid-tie, and hybrid solar with lithium storage. Custom-designed around your monthly kWh, roof orientation, and budget. Net-metering capable.
HD and 4K camera systems with on-site or cloud recording. Structured cabling, NVR setup, remote viewing, and night-vision optimized placement.
Three-phase service, motor controls, generator sets, transformer tie-ins, and resort-scale electrical packages. Permit drawings and as-built docs included.
Preventive maintenance, electrical permits, single-line diagrams, load schedules, and engineering consulting. We handle the paperwork your building official requires.
The guys here really know what they're doing. I can't recommend them enough for all your electrical work at home. Very reliable, and they won't break the bank. Five stars for them!
A complete, engineer-designed solar system that powers the typical Bohol home through brownouts and shaves the meter in daylight. Net-metering ready.
Every project is scoped, drawn, and signed off by a Registered Electrical Engineer. Not subcontracted. Not delegated to an unsupervised crew.
Every quotation becomes a written contract with milestone billing, scope freeze, and retention. No verbal estimates. No surprise change orders.
PEC compliant SLDs, load schedules, grounding tests, and as-built documents come standard. We engineer for the inspector before the breaker.
Tagbilaran-based crews and suppliers. Site visits in nearby municipalities within the same week. Emergency callouts honored for contract clients.
We install for homeowners, resorts, hotels, contractors, and industrial sites every month. If you manufacture or distribute panels, inverters, batteries, cables, breakers, lighting, or security hardware, talk to us about a reseller relationship.
Engineer-specified bills of materials mean repeat orders, not one-off purchases. Solar, CCTV, and panel-board components ship out monthly.
Get your brand named on signed SLDs, contracts, and quotations. That is the durable form of distribution in this industry.
We will certify our installers on your equipment. Your warranty terms get followed because we read them.
DTI registered, BIR registered, official receipts, audited books. Onboard once, transact for years.
No mystery. No verbal estimates. No surprise scope creep.
Send a message with your site, scope, or load requirement. Photos, floor plans, and bills welcome.
Engineer reviews scope. You receive an itemized quotation within 48 hours. Site visit if needed.
You accept online. A formal contract is signed at the site on Day 1, with deposit invoiced and receipted.
Crew executes. Engineer commissions. You sign the Sign-Off form and receive your warranty and as-builts.
Recent projects from the Bohol field log. Tap any one to see the full breakdown on the portfolio page.
Real recommendations from homeowners who hired Costan Electrics Services.
Engr. Costan was very quick to respond when we messaged regarding a short circuit. In the four days he worked on fixing our wiring and adding a different circuit breaker, he was able to fix what needed to be fixed and changed all over the house. I appreciate that he communicated and really explained to us what the problem was and how to avoid it in the future. He also made sure that the wires were presentable despite being exposed. We definitely recommend him to those who are looking for an electrical engineer.
Professional work ethics, clean work, and trustworthy. Makasaligan!
Thank you Doy Engr. Costan for installing photo switches in our grotto and other outdoor lights. No more hassle. Love it!
If your question is not here, message us. The engineer reads every quotation request.
