MEPFS Design Fee in the Philippines: 2026 Rates and Scope

Before the ceiling boards go up, every duct, tray and pipe in that void should already exist on a drawing someone signed. Illustrative photo.

Short answer: on AEDO's 2026 planning ranges (not a quotation), MEPFS design for a commercial building costs roughly ₱40–70 per sqm for electrical, ₱45–80 for mechanical and aircon, ₱35–60 for plumbing and sanitary and ₱50–90 for fire protection, with a minimum fee per discipline. A 600 sqm, three-storey commercial building with all four sets and a standby generator lands around ₱124,000 to ₱221,000, and takes about 14 to 20 working days once the architectural plans are final. Houses cost less per square metre; clinics and restaurants cost more.

The fee is the easy part. The part people get wrong is the signatures. Electrical plans need a Professional Electrical Engineer at every size (RA 7920). Mechanical and sprinkler plans need a Professional Mechanical Engineer (RA 8495 and the Fire Code rules). Sanitary goes to a Sanitary Engineer and plumbing to a Master Plumber. Get one of those wrong and the Building Official or the BFP sends the set back. The calculator below gives you a fee band, a turnaround and the signature each set needs.

1. How Much Does MEPFS Design Cost?

We price MEPFS by discipline and by floor area, because that's how the work actually happens: four sets, each drawn and signed by a different licensed professional, then checked against each other. Here are the planning ranges the calculator uses for an office, retail or general commercial building.

Then the building type moves those numbers. A house has a small electrical load, split-type aircon and a few bathrooms, so we plan it at roughly half the commercial rate. A restaurant or clinic has more of everything per square metre: kitchen exhaust, grease lines, heavier loads, more fixtures, medical equipment. A warehouse is mostly open floor, so electrical, aircon and plumbing drop well below the commercial rate, while fire protection stays close to it.

Special systems are priced as lump sums, because a generator or a kitchen hood takes about the same design effort in a 300 sqm building as in a 3,000 sqm one: commercial kitchen ₱15,000–30,000, medical gas ₱25,000–50,000, standby generator and transfer switch ₱10,000–20,000, elevator ₱15,000–30,000. All AEDO 2026 planning ranges, not quotations.

Why not a percentage of the construction cost? Professional groups publish fee guidelines written that way, and our structural engineer fee guide works through the PICE schedule for the structural side. We didn't find an official copy of an electrical, mechanical or plumbing fee schedule that we could read in full and cite, so we haven't quoted one. Per-square-metre pricing is also easier to check: you know your floor area before you know your construction cost. For how MEPFS fits inside a complete house design fee, see our house design fee guide.

2. What's in a Complete MEPFS Package?

"MEPFS plans" can mean a two-page electrical layout or a full coordinated set. The difference shows up at the permit counter and on site. Section 302 of the 2004 Revised IRR of PD 1096 lists what each discipline has to submit, and it's the most reliable checklist there is, because it's the one the Building Official uses. If you want the basics of what each letter covers first, our MEPFS explainer goes through them one at a time.

Notice what's on that list: design analysis for electrical, sanitary and plumbing, and design computations for elevators on the mechanical side. A complete package is not just drawings. It has the load computation behind the main breaker, the cooling load behind the aircon tonnage, the fixture-unit count behind the pipe sizes, and the hydraulic calculation behind the sprinkler pipe. If a quote gives you "electrical and plumbing layout" for a suspiciously low price, ask whether the computations are included. They're what the reviewer checks, and they're what you'll need when you add equipment in five years.

What a package normally leaves out: as-built drawings after construction, redesign when the architecture changes, shop-drawing review during construction, and anything the utility or the landlord asks for on top of the permit. Ask for these to be priced separately rather than assumed.

3. Who Must Sign Each Plan Set

This is the section to read twice. Section 302.3 of the 2004 Revised IRR requires five sets (JMC 2018-01 later set four for the streamlined process) of plans and documents "prepared, signed and sealed over the printed names of the duly licensed and registered professionals", and then names who that is for each discipline. The professional laws say the same thing from their side.

Electrical: PEE only, and there is no size cut-off

RA 7920, the New Electrical Engineering Law, is blunt about it. Section 31(a) gives the Professional Electrical Engineer "the sole authority to seal electrical plans". Section 34 makes it unlawful for anyone not authorized under the Act to prepare plans for any electrical wiring, equipment or system, and says no installation shall be undertaken unless the plans were prepared by or under the responsible charge of, and signed and sealed by, a PEE.

People often ask at what kVA a Registered Electrical Engineer can sign instead. Under the law, none. The numbers that get quoted, 500 kVA and 600 volts, are in Section 31(c), and they are about something else: a Registered Master Electrician may install and wire, but installations or machinery rated above 500 kVA or 600 V must be done under the supervision of a PEE or an REE. That's installation work, not plan signing. You may also see PD 1096's own Section 302 refer to a "registered electrical engineer" for electrical plans. That text is from 1977. RA 7920 came in 1995, and the 2004 Revised IRR names the PEE. Our electrical service sizing guide shows the load schedule that sits behind those plans.

Mechanical: PME, with one narrow exception

RA 8495, the Philippine Mechanical Engineering Act of 1998, covers aircon, ventilation, pumps, elevators, escalators, boilers and piping at a working pressure of 70 kPa or more in its definition of mechanical equipment (Section 3(b)). Section 33(a) says no one may be in responsible charge of preparing plans unless they are a licensed PME, and Section 35 says no mechanical equipment may be installed or altered unless the plans were signed and sealed by a PME. The same section adds that proposals and quotations for supplying and fabricating "mechanical fire protection systems" must be signed and sealed by a PME too.

The kilowatt thresholds in RA 8495, 100, 300 and 2,000 kW in Sections 33(d) to (f) and 34, are about who may operate and maintain a running plant. They don't loosen plan signing. The one exception sits in the IRR: Section 302.7(j) lets the signature of a licensed Mechanical Engineer suffice for installations with machinery of at most 14.9 kW (about 20 hp). It then excludes pressure vessels, elevators, escalators, dumbwaiters, central, split and packaged aircon, and steam, gas and fuel piping. Since almost every building we design has split-type aircon, in practice the mechanical set goes to a PME. The cooling load behind it is covered in our aircon tonnage guide.

Plumbing and sanitary: two professions, one set of pipes

The IRR splits these. Section 302.3(f) names the Sanitary Engineer for sanitary documents (water systems, drainage and sewer, sewage treatment and disposal), and 302.3(g) the Master Plumber for plumbing documents (hot and cold water, fixtures, drainage and vents inside and next to the building). RA 1364, the Sanitary Engineering Law, bars anyone but a registered sanitary engineer from responsible charge of sanitary engineering plans (Section 28(a)), but Section 33 says the Act does not diminish the field already held by licensed master plumbers. RA 1378, the Plumbing Law, puts "designing, preparation of plans, specifications" of plumbing work inside the practice of plumbing (Section 2(a)). In practice many offices accept a combined plumbing and sanitary set; which seal they want on a septic tank or a sewage treatment plant varies by LGU, so ask the Building Official before you engage. Our National Plumbing Code guide covers the technical rules.

Fire protection: PME for sprinklers, a practitioner for the FSEC

The 2019 Revised IRR of the Fire Code is specific. Section 10.2.6.7 A.2: sprinkler plans and specifications "shall be signed and sealed by a Professional Mechanical Engineer (PME)." Smoke control systems also need detailed design plans signed and sealed by a PME before the FSEC.

Fire alarms are less tidy. The IRR lists alarm and initiating devices under mechanical documents (302.7(k)) and also lists "electronic fire alarm systems" under electronics documents (302.10), which 302.3(h) gives to the Electronics Engineer. Two lists, two professions. We haven't found an issuance that settles it nationwide, so we tell clients plainly: the Building Official and the Fire Marshal decide whose seal goes on the FDAS sheets, and we ask before drawing.

Then there's the Fire Safety Compliance Report. For any building that has to install a wet standpipe, automatic sprinklers or automatic fire detection, Section 9.0.3.1 requires an FSCR for the FSEC. Section 9.0.3.2 A says it is signed by the Engineer or Architect-of-Record and a Fire Safety Practitioner accredited by the BFP, and Section 9.0.3.5 says only practitioners holding a Certificate of Competency may prepare and sign it. The FSEC is what the Building Official needs before the building permit (RIRR Rule 9, Division 1, paragraph C). Our FSIC guide covers the certificate you need later for occupancy.

4. How Long Does MEPFS Design Take?

Longer than the architectural people hope and shorter than most owners fear. The clock starts when the architectural plans are final. MEPFS can start earlier on a draft layout, but every moved wall moves a light, an outlet, a diffuser and a sprinkler head, so early work gets redone.

Our planning estimate, which the calculator uses: 5 working days plus one day for every 200 sqm of effective floor area for the disciplines running in parallel; 3 more if fire protection is included, for the hydraulic calculation and the FSCR inputs; 2 more to coordinate two or more disciplines; 1 more per special system; and more again above five and ten storeys. The upper figure allows 40% for review comments from you and your architect. A 600 sqm, three-storey commercial building with all four disciplines and a generator comes out at about 14 to 20 working days.

Government review comes after that. Under Section 12(a) of RA 9485, as inserted by RA 11032, the Ease of Doing Business Act, the BFP must issue the FSEC in no more than seven working days. That clock runs from a complete application, which is why an incomplete FSCR costs more time than any drafting delay. For the rest of the building permit sequence, see our building permit guide.

5. Why MEPFS Fees Vary So Much

Two quotes for the same building can differ by a factor of three. Usually they aren't quoting the same thing. The main reasons, roughly in order of how much they move the number:

• What's included. Layouts only, or layouts plus computations, specifications and coordination? The IRR asks for the design analysis. A quote without it is cheaper and incomplete.
• How many disciplines are really in scope. A small house may not need a separate mechanical set if it only has a couple of window-type units. A restaurant needs all of them plus the kitchen exhaust.
• Building type. A clinic's electrical load, dedicated circuits, medical gas and extra plumbing cost more to design than an office of the same size. The type factors in Section 1 capture this.
• Size and repetition. The first 1,000 sqm is where most of the thinking happens. Typical floors repeat. That's why the calculator charges less per square metre above 1,000 and 3,000 sqm.
• Storeys. Every extra floor means riser diagrams, voltage drop over a longer feeder, water pressure at the top floor and fire protection on each level.
• Special systems. Generator and transfer switch, elevator, commercial kitchen, medical gas, sewage treatment. Each is its own small design problem.
• Coordination and revisions. A team that draws all four sets over one architectural base and checks them against the structural plans spends more time up front and much less fixing things later. Our coordination guide shows the clashes that come from skipping this step.

6. Where the Four Systems Fight for Space

Look up at a ceiling before the boards go in and you see the real reason MEPFS needs one coordinated design. Four systems, drawn by four professionals, all have to pass through the same few hundred millimetres between the slab and the ceiling, and they all have to get past the beams.

The drain branch is the other quiet troublemaker. Water only flows downhill, so a drain has to fall steadily all the way to its riser. Run it far enough across a floor and it ends up lower than the ceiling the architect drew, or it has to pass through a beam. Neither is a problem if it's caught on paper. Coring a beam that's already poured needs the structural engineer's approval, and sometimes the answer is no.

7. What Goes Wrong When MEPFS Is Done on Site

"Ang electrician na lang ang bahala." We hear it a lot, especially on houses and small commercial buildings. Sometimes the owner saves the design fee. Here's what tends to come with it.

• No permit, or a stalled one. The building permit needs the electrical, mechanical, sanitary and plumbing sets signed by the right professionals (IRR Section 302.3). On a building that needs fire protection, the FSEC needs the FSCR and the fire protection plans (RIRR Section 9.0.3.2), and no FSEC means no building permit.
• No occupancy or business permit later. RIRR Rule 9, Division 1, paragraph B: no Certificate of Occupancy, Business Permit or Permit to Operate is issued without an FSIC. The inspector checks the installation against the approved plans. If there were never any approved plans, you're drawing them after the fact, and possibly opening ceilings to match them.
• Undersized service. The panel gets sized on what the electrician expects today. Then the aircon units arrive, or the kitchen equipment, and the main breaker trips at lunch. Upgrading a service after the building is finished costs more than designing it right, and may need the utility's approval.
• Clashes found with a grinder. See Section 6. Every trade routes its own way. The last one to arrive finds no space left.
• Legal exposure. RA 7920 Section 34 makes electrical installation without PEE-signed plans unlawful; Section 40 sets a fine of ₱10,000 to ₱50,000, imprisonment of six months to five years, or both. RA 8495 Section 42 sets ₱50,000 to ₱200,000, six months to three years, or both, for violating the Mechanical Engineering Act. RA 1378 Section 20 covers unregistered plumbing work, with a fine of ₱500 to ₱2,000, six months to a year, or both, though Section 23 limits that 1955 law to chartered cities. Under PD 1096, Section 212 of the IRR allows administrative fines of up to ₱10,000, and Section 213 a criminal fine of up to ₱20,000, up to two years, or both.

Fires in the Philippines are commonly traced to electrical faults, which our commercial fire prevention guide covers in detail. A signed electrical design isn't a guarantee against that, but it is the one document that shows somebody checked the wire sizes against the loads before the wires went in.

8. Questions to Ask Your MEPFS Engineer

Whoever you hire, these questions sort out a good MEPFS quote from a cheap one:

• Who signs each set, and what licence do they hold? PEE for electrical, PME for mechanical and sprinklers, Sanitary Engineer or Master Plumber for sanitary and plumbing. Ask for PRC numbers. It's in the title block anyway (IRR Figure III.2).
• Are the computations included? Load schedule and voltage drop, cooling load, fixture units and pipe sizing, sprinkler hydraulics. The IRR asks for design analysis on the electrical, sanitary and plumbing sets, and the BFP expects it in the FSCR; the rest is how the equipment gets sized.
• Who prepares the FSCR, and is a BFP-accredited Fire Safety Practitioner on the team? Without one, the FSEC can't be applied for.
• Are the four sets drawn over the same architectural base and checked against the structural plans? If each discipline is subcontracted separately, ask who does the clash check.
• How many revision rounds are included, and what triggers a redesign fee? Usually a change in the architecture after the MEPFS work has started.
• Will you answer the Building Official's and the BFP's comments? Review comments are normal. Replying to them should be in the fee.
• What's the delivery date, counted from which document? A working-day promise means little if the start date is vague.

Frequently Asked Questions